Windows 8.1 PPTP VPN error 734

Hello,
I am attempting to establish a VPN connection to a client site using Windows 8.1 Pro update 1. I have two laptops running Windows 7 pro that work perfectly. Trying to establish a new connection using the =exact same settings= on the Windows
8.1 system returns error 734 every single time. Both systems are running the same version of McAfee firewall and are on the same local network.
Thanks,
Tim
Tim in Dublin

Check this URL : http://www.howtonetworking.com/vpnissues/error734.htm
Or try these steps :
1) go to network/sharing (right click connection icon lower righthand corner) -> change adapter settings
2) right click your vpn connetions
3) click Options tab
4) uncheck remember my credentials
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread.

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PIX PPTP VPN error

hi!
im encountering error on PIX 515e. I tried to configure the firewall to be come VPN server using PPTP. When I tried to connect remotely, i recve this messge from the remote computer trying to stablish VPN. The error is, The Remote Computer is not Responding.
Any suggestions?
Tnx!

If you have already followed the steps listed in the below URL, check the current configuration on the pix and also run the debugs listed in the URL and post the outputs if possible.
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080143a5d.shtml
Regards,
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Error 807/800 - using PPTP VPN from Windows 7/XP t...

Hi,
I wonder if someone could help me? I've had this issue for about 3 months now and I’m completely at a loss now. I’m trying to connect remotely to a Windows 2003 server via Windows VPN (PPTP) from home. This had been working fine for months (Draytek 2830n purchased in Feb 2011), there has been no configuration changes beforehand to cause the problem.
Problem
From Windows 7 PC – I receive Error 807 – “The network connection between your computer and the VPN server was interrupted. This can be caused by a problem in the VPN transmission and is commonly the result of internet latency or simply that your VPN server has reached capacity. Please try to reconnect to the VPN server. If this problem persists, contact the VPN administrator and analyze quality of network connectivity”
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The only thing that I can’t swap out is my BT line to the Exchange. Any ideas or suggestions would be extremely helpful. I’m thinking it must be a problem with my ADSL connection, perhaps the traffic is being blocked (for some reason) as I’ve explored all other avenues. I’m out of contract with BT now (although I don’t want to move ISP) I might end up having to if it solves the problem.
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posted in error as you've already looked at BT web address help. Sorry
-+-No longer a forum member-+-

Help needed to connect to remote PPTP VPN via PIX 515e

Hello,
A user in our office needs to connect to a client's remote PPTP VPN but can't connect. The user is running Windows 7. We have a Cisco PIX 515e firewall that is running PIX Version 6.3(3) - this is what our user is having to go through to try and make the connection to the client's remote VPN.
The client's network guys have come back and said the issue is at our side. They say that they can see some of our traffic but not all of it. The standard error is shown below, and they say it's symptomatic of the client-side firewall not allowing PPTP traffic:
"A connection between the VPN server and the VPN client XXX.XXX.XXX.XXX has been established, but the VPN connection cannot be completed. The most common cause for this is that a firewall or router between the VPN server and the VPN client is not configured to allow Generic Routing Encapsulation (GRE) packets (protocol 47). Verify that the firewalls and routers between your VPN server and the Internet allow GRE packets. Make sure the firewalls and routers on the user's network are also configured to allow GRE packets. If the problem persists, have the user contact the Internet service provider (ISP) to determine whether the ISP might be blocking GRE packets."
I have very little firewall experience and absolutely no Cisco experience I'm afraid. From looking at the PIX config I can see the following line:
fixup protocol pptp 1723.
Does this mean that the PPTP protcol is enabled on our firewall? Is this for both incoming and outgoing traffic?
I can see no reference to GRE 47 in the PIX config. Can anyone advise me what I should look for to see if this has been enabled or not?
I apologise again for my lack of knowledge. Any help or advice would be very gratefully received.
Ros

Hi Eugene,
Thank you for taking the time to reply to me. Please see our full PIX config below. I've XX'd out names and IP addresses as I'm never comfortable posting those type of details in a public forum. I hope that the information below is still sufficient for you.
Thanks again for your help,
Ros
PIX(config)# en
Not enough arguments.
Usage: enable password [] [level ] [encrypted]
no enable password level
show enable
PIX(config)# show config
: Saved
: Written by enable_15 at 10:30:31.976 GMT/BDT Mon Apr 4 2011
PIX Version 6.3(3)
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 DMZ security10
enable password XXX encrypted
passwd XXX encrypted
hostname PIX
domain-name XXX.com
clock timezone GMT/BST 0
clock summer-time GMT/BDT recurring last Sun Mar 1:00 last Sun Oct 2:00
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol pptp 1723
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
name XX.XX.XX.XX Secondary
access-list outside_access_in permit tcp XX.XX.XX.XX 255.255.255.240 host XX.XX.XX.XX eq smtp
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq https
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq 993
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq 587
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq 82
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq www
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq www
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq www
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq https
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 993
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 587
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 82
access-list outside_access_in permit tcp host XX.XX.XX.XX host XX.XX.XX.XX eq 82
access-list outside_access_in permit tcp host XX.XX.XX.XX host XX.XX.XX.XX eq 82
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq smtp
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 8082
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq www
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq https
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 993
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 587
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq 82
access-list outside_access_in permit tcp any host XX.XX.XX.XX eq smtp
access-list outside_access_in permit tcp any host XX.XX.XX.XX. eq www
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.0.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl deny udp any any eq 135
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_40 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_60 permit ip any XX.XX.XX.XX 255.255.255.0
access-list USER1 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_10 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_20 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_30 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_50 permit ip any XX.XX.XX.XX 255.255.255.0
access-list outside_cryptomap_70 permit ip any XX.XX.XX.XX 255.255.0.0
access-list USER2 permit ip any XX.XX.XX.XX 255.255.255.0
access-list USER3 permit ip any XX.XX.XX.XX 255.255.255.0
access-list USER4 permit ip any XX.XX.XX.XX 255.255.0.0
pager lines 24
logging on
logging host inside XX.XX.XX.XX
icmp permit any outside
icmp permit any inside
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
ip address outside XX.XX.XX.XX 255.255.255.248
ip address inside XX.XX.XX.XX 255.255.255.0
no ip address DMZ
ip audit info action alarm
ip audit attack action alarm
pdm location XX.XX.XX.XX 255.255.255.255 inside
pdm location XX.XX.XX.XX 255.255.0.0 outside
pdm location XX.XX.XX.XX 255.255.255.0 outside
pdm logging debugging 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) XX.XX.XX.XX XX.XX.XX.XX netmask 255.255.255.255 0 0
static (inside,outside) XX.XX.XX.XX. XX.XX.XX.XX netmask 255.255.255.255 0 0
static (inside,outside) XX.XX.XX.XX. XX.XX.XX.XX netmask 255.255.255.255 0 0
static (inside,outside) XX.XX.XX.XX XX.XX.XX.XX netmask 255.255.255.255 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 XX.XX.XX.XX 1
route inside XX.XX.XX.XX 255.255.0.0 XX.XX.XX.XX 1
timeout xlate 3:00:00
timeout conn 2:00:00 half-closed 0:30:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
ntp authenticate
ntp server XX.XX.XX.XX source outside prefer
http server enable
http XX.XX.XX.XX 255.255.0.0 outside
http XX.XX.XX.XX 255.255.255.0 outside
http XX.XX.XX.XX 255.255.255.255 inside
snmp-server host inside XX.XX.XX.XX
no snmp-server location
no snmp-server contact
snmp-server community XXX
snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto dynamic-map cola 20 set transform-set ESP-3DES-MD5
crypto dynamic-map dod 10 set transform-set ESP-3DES-MD5
crypto map outside_map 10 ipsec-isakmp dynamic cola
crypto map outside_map 20 ipsec-isakmp
crypto map outside_map 20 match address outside_cryptomap_20
crypto map outside_map 20 set peer XX.XX.XX.XX
crypto map outside_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 25 ipsec-isakmp
crypto map outside_map 25 match address USER1
crypto map outside_map 25 set peer XX.XX.XX.XX
crypto map outside_map 25 set transform-set ESP-3DES-MD5
crypto map outside_map 30 ipsec-isakmp
crypto map outside_map 30 match address outside_cryptomap_30
crypto map outside_map 30 set peer XX.XX.XX.XX
crypto map outside_map 30 set transform-set ESP-3DES-MD5
crypto map outside_map 40 ipsec-isakmp
crypto map outside_map 40 match address outside_cryptomap_40
crypto map outside_map 40 set peer XX.XX.XX.XX
crypto map outside_map 40 set transform-set ESP-3DES-MD5
crypto map outside_map 50 ipsec-isakmp
crypto map outside_map 50 match address outside_cryptomap_50
crypto map outside_map 50 set peer XX.XX.XX.XX
crypto map outside_map 50 set transform-set ESP-3DES-MD5
crypto map outside_map 60 ipsec-isakmp
crypto map outside_map 60 match address outside_cryptomap_60
crypto map outside_map 60 set peer XX.XX.XX.XX
crypto map outside_map 60 set transform-set ESP-3DES-MD5
crypto map outside_map 70 ipsec-isakmp
crypto map outside_map 70 match address outside_cryptomap_70
crypto map outside_map 70 set peer XX.XX.XX.XX
crypto map outside_map 70 set transform-set ESP-3DES-MD5
crypto map outside_map 75 ipsec-isakmp
crypto map outside_map 75 match address USER4
crypto map outside_map 75 set peer XX.XX.XX.XX
crypto map outside_map 75 set transform-set ESP-3DES-MD5
crypto map outside_map 80 ipsec-isakmp
crypto map outside_map 80 match address USER2
crypto map outside_map 80 set peer XX.XX.XX.XX
crypto map outside_map 80 set transform-set ESP-3DES-MD5
crypto map outside_map 90 ipsec-isakmp
crypto map outside_map 90 match address USER3
crypto map outside_map 90 set peer XX.XX.XX.XX
crypto map outside_map 90 set transform-set ESP-3DES-MD5
crypto map outside_map interface outside
isakmp enable outside
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address XX.XX.XX.XX netmask 255.255.255.255 no-xauth no-config-mode
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
telnet XX.XX.XX.XX 255.255.0.0 outside
telnet XX.XX.XX.XX 255.255.255.255 inside
telnet XX.XX.XX.XX 255.255.255.255 inside
telnet XX.XX.XX.XX 255.255.255.255 inside
telnet timeout 30
ssh XX.XX.XX.XX 255.255.255.248 outside
ssh XX.XX.XX.XX 255.255.255.248 outside
ssh timeout 30
management-access inside
console timeout 0
terminal width 80
Cryptochecksum:XXX
PIX(config)#

Cannot connect to RV110w VPN error 619

Hello,
I'm having problems logging into my RV110w using either quickvpn or a windows pptp client connection....
I've been following the guide here but I just can't connect....I can connect via remote management however....
https://supportforums.cisco.com/document/124251/remote-vpn-tunnel
So :
IPSec, PPTP and L2Tp enabled.
RV110w firewall enabled
Block WAN Request enabled
Remote Management enabled - port 443
MPEE Encryption Enabled
Netbios over VPN Enabled
2 Clients created one for quickvpn and one for pptp.
Win 7 firewall enabled at remote end with rull to allow inbound ICMP Echo.
Exported Certificate and copied to the quickvpn install folder.
Disabled all other network adapters
QuickVPN tries to connect then shows a message listing possible reasons for a failed connection....
The quickvpn log shows:
2015/02/01 12:14:58 [STATUS]OS Version: Windows 7
2015/02/01 12:14:58 [STATUS]Windows Firewall Domain Profile Settings: ON
2015/02/01 12:14:58 [STATUS]Windows Firewall Private Profile Settings: ON
2015/02/01 12:14:58 [STATUS]Windows Firewall Private Profile Settings: ON
2015/02/01 12:14:58 [STATUS]One network interface detected with IP address 192.168.1.79
2015/02/01 12:14:58 [STATUS]Connecting...
2015/02/01 12:14:58 [DEBUG]Input VPN Server Address = 90.2.30.86
2015/02/01 12:14:58 [STATUS]Connecting to remote gateway with IP address: 90.2.30.86
2015/02/01 12:14:59 [STATUS]Remote gateway was reached by https ...
2015/02/01 12:14:59 [WARNING]Remote gateway wasn't reached...
2015/02/01 12:14:59 [WARNING]Failed to connect.
2015/02/01 12:15:20 [WARNING]Remote gateway wasn't reached...
2015/02/01 12:15:20 [WARNING]Failed to connect.
2015/02/01 12:15:20 [WARNING]Failed to connect!
The RV110w doesn't seem to log anything...?
If I try to connect using a windows pptp vpn connection I get an error 619 straight away and the RV110w log shows:
1
2015-02-01 12:20:14 AM
info
pptpd[22775]: CTRL: Client 123.150.210.162 control connection finished
2
2015-02-01 12:20:14 AM
debug
pptpd[22775]: CTRL: Reaping child PPP[22780]
3
2015-02-01 12:20:14 AM
err
pptpd[22775]: CTRL: PTY read or GRE write failed (pty,gre)=(12,13)
4
2015-02-01 12:20:14 AM
err
pptpd[22775]: GRE: read(fd=12,buffer=451c4c,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
5
2015-02-01 12:20:14 AM
err
pppd[22780]: but I couldn't find any suitable secret (password) for it to use to do so.
6
2015-02-01 12:20:14 AM
err
pppd[22780]: The remote system is required to authenticate itself
7
2015-02-01 12:20:14 AM
info
pptpd[22775]: CTRL: Starting call (launching pppd, opening GRE)
8
2015-02-01 12:20:14 AM
info
pptpd[22775]: CTRL: Client 123.150.210.162 control connection started
This is all behind a talktalk fibre router, they say it's transparent and doesn't block anything but they won't support me any further than that. Ports 443 and 1723 do seem to be open when I scan so as far as I can see the talktalk router is transparent.
Do I need to create any rules on the RV110w firewall to get this working? or forward any ports to the router itself?
Thanks for any help, Kevin

I believe the problem is in iOS, as I am experiencing the same issue.
I have a Yosemite Server running L2TP VPN server and my Mac connects flawless, while neither the iPhone nor the iPad (both 8.2) are able to connect.
The error is the same "The L2TP-VPN server did not respond" and by looking at the server's log it seems iOS didn't even try to connect.
I have tried changing the server address in iOS with the corresponding IP, but the results it's the same.
Maybe a network setting reset?

Can't connect to PPTP-VPN server...

When attempting to connect to a DD-WRT PPTP VPN server I kept receiving the general "Can't connect to PPTP-VPN server." message. All of the settings were exactly correct and tested on a Windows laptop. I began writing this because I didn't have any other ideas but half way through it (out of the blue) decided to attempt connecting. It worked!
The only thing I did different was delete the /Library/Preferences/SystemConfiguration contents and reboot.
Let's hope it continues to work. Posting this in case anyone else has the same error as I.

A follow up on the VPN issue: it would only work if my laptop's wireless was tethered off of my Android phone - any other connection would connect to the VPN and get an IP but I couldn't ping anything. Also, after rebooting, I get the exact same damning error message now and any combination of rebooting and removing/renaming (don't ever delete system files!) /Library/Preferences/SystemConfiguration/* hasn't fixed the issue.
I very much hope Apple releases an update soon for this - it's a serious inconvenience! It must be a network stack issue too because I've tried many 3rd party applications that barf as well.

Trouble about vpn connecting (PPTP VPN did not respond)

I am new in mac. These days I have searched a lot on line for the solution to this problem but none fixed it. So....
Our lab only have an instruciton for connecting vpn under windows and I succeeded to do this by following this in windwos 7.
There is a host name instead of ip address in the instruciton and I think that should not be the problem.
And in the protocol of TCP/IP property settings, the user was asked to Remove the tick before “Use default gateway on remote network”. Besides, in the instruction, it sets to obtain the IP address and DNS address automatically, so that I do not have such inforamtion about the server of our lab.
In my new macbook pro (Mac ox lion 10.7.3), I did the following things:
1. in system properties->network, Select the + button at the bottom left of the screen to add a new connection.
2. Select the following:
a. Interface: VPN
b. VPN Type: PPTP
c. Service Name: SAS VPN
d. Select Create.
3. Configuration: default
    server address: host name “xxx.xx.xxxx.xx”
    account name: (I am sure there is no error in this)
   encryptiong: none
4. click Authorization settings to input the password.
5. Click the Advanced button. and Select Options. Verify Send all traffic over VPN connection is checked. (and is not checked ) (I tried both, none of them worked). About the other seetings.
6. On the TCP/IP tab, set "Configure IPv4" to "Using PPP." So I can not input the DNS server information.
7. click apply and then try to connect.
However, it returned me an error said " PPTP-VPN server did not respond. Try to reconnect. If that continues....."
I think there are lots of experts in mac os x. Can anyone here help me with this? Thanks a lot in advance!

>> encryptiong: none
I found out, that you NEED the encryption in Lion Server VPN.
I understand, that you use Lion Server as you mention the problem here in the Lion Server section.
I do the following: Install the "Admin Tool VPN" from App-Store for some Euros. Than I found section PPTP and there is a check for
a) Active
b) Compression and Encryption
I take the check for b) out and restart (Off / On), took my XP-Notebook and connected via PPTP and all working!
Since Lion Apple hide a lot of things from the official tools and if you have some special tools, you can activate function. There is
Level 1, the userlevel: Something like Dashboard in the new MS-Servers or the Server App in the new Lion Server
Level 2, the administrator level: The difference between Server App and Server Admin! The Server Tools you need download separatly as you know after a while, something is missing. Same with the new Airport Utility: Userlevel tool = AU 6.0 with grafical fun and some basics, AU 5.6 is the tool for the admin what you separtly need download.
Level 3, the special deeper view: Typically it is the command line interface, CLI, but if you need some GUI (grafical user interface), you buy an App like Admin VPN Tool and this tool (App for some Euros) in real does nothing else than comfortably set some inside switches and flags that the offical GUI admin tools not have realized.
Why?
Oh, I think it's because security issues. You want the Mac Server become like a Microsoft Server? So, you shouldn't use not encrypted connections and that's (in my understanding) the reason why the Lion Server EXPECTS YOU to use encryption and the official tools not give you the oportunity to switch the encryption off!

Error 734: The PPP link control protocol was terminated.

I am using windows 8.1 and www.astrill.com VPN. before it was working, but now its not working. I tried to connect VPN for last 4 days.
I followed https://social.technet.microsoft.com/Forums/windows/en-US/303c7c61-074f-4588-ba92-006295ef7cc8/error-734-the-ppp-link-control-protocol-was-terminated?forum=w8itpronetworking but it doesn't help me.
I guess I couldn't login astrill vpn. because my OS doesn't ask me login username password. only asking about my computer's username password. Before it was working same my laptop and OS. I think after windows update it doesn't work.

Check the properties under your Astrill VPN profile, under security tav click "Allow unsecured password" in the "Validate my identity as follows" box, and then click "OK
or try to delete and re-create the profile
http://wiki.astrill.com/index.php/Astrill_Setup_Manual:How_to_configure_PPTP_with_Windows_built-in_client_on_Windows_8
try to update MS-CHAP (authentication protocol) support on the VPN server by download the latest version
https://www.astrill.com/download.php
You can also try to use Astrill VPN Dialer 1.1 to connect
you can also try do system restore (using restore point) back to condition when this VPN working fine
contact Astrill as VPN manufactured for better investigation
Tips:
Hongkong server 1 or 2 and Los Angles mostly working
Mostly issue will be solved by reinstall Astrill
Update your Wlan and LAN card to isolate driver issue (if any), check at your PC manufactured site

[Solved] NetworkManager-pptp VPN not working after update to 0.9.10

Hello,
I have a PPTP VPN set up and it's been working for a long time. However, after I updated last night to networkmanager-0.9.10, it is no longer able to connect to the remote network. I can activate the VPN connection, enter my password, but after a short period of time, the connection reports: "Error: Connection activation failed: the VPN service returned invalid configuration." As I mentioned before, this VPN was working right before the update and I didn't change the configuration on either my computer or the destination network so I'm pretty sure that this is something to do with the update. I'm wondering if anybody else has run into this problem and if they've been able to find a solution. I've been searching all over these forums and the internet for some hours now and I haven't found anything yet. I'm hoping that somebody might be able to point me in the right direction or maybe know of something that might have changed with the new update.
Here is my VPN configuration (using NetworkManager-PPTP. I've also obscured the public IP address):
[connection]
id=MyVPN
uuid=fe6e6265-1a79-4a69-b6d1-8b47e9d4c948
type=vpn
permissions=user:greyseal96:;
autoconnect=false
timestamp=1408950986
[vpn]
service-type=org.freedesktop.NetworkManager.pptp
gateway=192.168.146.114
require-mppe=yes
user=greyseal96
password-flags=3
[ipv6]
method=auto
[ipv4]
method=auto
route1=10.17.0.0/16,10.17.1.1,1
never-default=true
Here are my logs during the time that I tried to connect:
Aug 24 23:44:15 MyArchBox NetworkManager[578]: <info> Starting VPN service 'pptp'...
Aug 24 23:44:15 MyArchBox NetworkManager[578]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 1938
Aug 24 23:44:15 MyArchBox NetworkManager[578]: <info> VPN service 'pptp' appeared; activating connections
Aug 24 23:44:21 MyArchBox NetworkManager[578]: <info> VPN connection 'MyVPN' (ConnectInteractive) reply received.
Aug 24 23:44:21 MyArchBox NetworkManager[578]: <info> VPN plugin state changed: starting (3)
Aug 24 23:44:21 MyArchBox NetworkManager[578]: ** Message: pppd started with pid 1945
Aug 24 23:44:21 MyArchBox NetworkManager[578]: <info> VPN connection 'MyVPN' (Connect) reply received.
Aug 24 23:44:21 MyArchBox pppd[1945]: Plugin /usr/lib/pppd/2.4.6/nm-pptp-pppd-plugin.so loaded.
Aug 24 23:44:21 MyArchBox NetworkManager[578]: Plugin /usr/lib/pppd/2.4.6/nm-pptp-pppd-plugin.so loaded.
Aug 24 23:44:21 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (plugin_init): initializing
Aug 24 23:44:21 MyArchBox pppd[1945]: pppd 2.4.6 started by root, uid 0
Aug 24 23:44:21 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection'
Aug 24 23:44:21 MyArchBox pppd[1945]: Using interface ppp0
Aug 24 23:44:21 MyArchBox pppd[1945]: Connect: ppp0 <--> /dev/pts/2
Aug 24 23:44:21 MyArchBox NetworkManager[578]: Using interface ppp0
Aug 24 23:44:21 MyArchBox NetworkManager[578]: Connect: ppp0 <--> /dev/pts/2
Aug 24 23:44:21 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
Aug 24 23:44:21 MyArchBox NetworkManager[578]: <info> (ppp0): new Generic device (driver: 'unknown' ifindex: 10)
Aug 24 23:44:21 MyArchBox NetworkManager[578]: <info> (ppp0): exported as /org/freedesktop/NetworkManager/Devices/9
Aug 24 23:44:21 MyArchBox pptp[1947]: nm-pptp-service-1938 log[main:pptp.c:333]: The synchronous pptp option is NOT activated
Aug 24 23:44:21 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 1 'Start-Control-Connection-Request'
Aug 24 23:44:21 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_disp:pptp_ctrl.c:758]: Received Start Control Connection Reply
Aug 24 23:44:21 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_disp:pptp_ctrl.c:792]: Client connection established.
Aug 24 23:44:22 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 7 'Outgoing-Call-Request'
Aug 24 23:44:22 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_disp:pptp_ctrl.c:877]: Received Outgoing Call Reply.
Aug 24 23:44:22 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_disp:pptp_ctrl.c:916]: Outgoing call established (call ID 0, peer's call ID 50048).
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 6 / phase 'authenticate'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (get_credentials): passwd-hook, requesting credentials...
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (get_credentials): got credentials from NetworkManager-pptp
Aug 24 23:44:25 MyArchBox pppd[1945]: CHAP authentication succeeded
Aug 24 23:44:25 MyArchBox NetworkManager[578]: CHAP authentication succeeded
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 8 / phase 'network'
Aug 24 23:44:25 MyArchBox pppd[1945]: MPPE 128-bit stateless compression enabled
Aug 24 23:44:25 MyArchBox NetworkManager[578]: MPPE 128-bit stateless compression enabled
Aug 24 23:44:25 MyArchBox pppd[1945]: Cannot determine ethernet address for proxy ARP
Aug 24 23:44:25 MyArchBox pppd[1945]: local IP address 10.17.10.3
Aug 24 23:44:25 MyArchBox pppd[1945]: remote IP address 10.17.10.1
Aug 24 23:44:25 MyArchBox pppd[1945]: primary DNS address 10.17.2.22
Aug 24 23:44:25 MyArchBox pppd[1945]: secondary DNS address 10.17.2.23
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> VPN connection 'MyVPN' (IP4 Config Get) reply received from old-style plugin.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> VPN Gateway: 192.168.146.114
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Tunnel Device: ppp0
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> IPv4 configuration:
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Internal Address: 10.17.10.3
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Internal Prefix: 32
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Internal Point-to-Point Address: 10.17.10.1
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Maximum Segment Size (MSS): 0
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Static Route: 10.17.0.0/16 Next Hop: 10.17.1.1
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Forbid Default Route: yes
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Internal DNS: 10.17.2.22
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> Internal DNS: 10.17.2.23
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> DNS Domain: '(none)'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <info> No IPv6 configuration
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <error> [1408949065.481618] [platform/nm-linux-platform.c:1716] add_object(): Netlink error adding 10.17.0.0/16 via 10.17.1.1 dev ppp0 metric 1 mss 0 src user: Unspecific failure
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <warn> VPN connection 'MyVPN' did not receive valid IP config information.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Cannot determine ethernet address for proxy ARP
Aug 24 23:44:25 MyArchBox NetworkManager[578]: local IP address 10.17.10.3
Aug 24 23:44:25 MyArchBox NetworkManager[578]: remote IP address 10.17.10.1
Aug 24 23:44:25 MyArchBox NetworkManager[578]: primary DNS address 10.17.2.22
Aug 24 23:44:25 MyArchBox NetworkManager[578]: secondary DNS address 10.17.2.23
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 9 / phase 'running'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_ip_up): ip-up event
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_ip_up): sending Ip4Config to NetworkManager-pptp...
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: PPTP service (IP Config Get) reply received.
Aug 24 23:44:25 MyArchBox pppd[1945]: Terminating on signal 15
Aug 24 23:44:25 MyArchBox pppd[1945]: Modem hangup
Aug 24 23:44:25 MyArchBox pptp[1954]: nm-pptp-service-1938 log[callmgr_main:pptp_callmgr.c:245]: Closing connection (unhandled)
Aug 24 23:44:25 MyArchBox pptp[1954]: nm-pptp-service-1938 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 12 'Call-Clear-Request'
Aug 24 23:44:25 MyArchBox pptp[1954]: nm-pptp-service-1938 log[call_callback:pptp_callmgr.c:84]: Closing connection (call state)
Aug 24 23:44:25 MyArchBox pppd[1945]: Connect time 0.0 minutes.
Aug 24 23:44:25 MyArchBox pppd[1945]: Sent 0 bytes, received 0 bytes.
Aug 24 23:44:25 MyArchBox pppd[1945]: MPPE disabled
Aug 24 23:44:25 MyArchBox pppd[1945]: Connection terminated.
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox NetworkManager[578]: inet 10.17.0.0/16 table main
Aug 24 23:44:25 MyArchBox NetworkManager[578]: priority 0x1 protocol static
Aug 24 23:44:25 MyArchBox NetworkManager[578]: nexthop via 10.17.1.1 dev 10
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <error> [1408949065.487073] [platform/nm-linux-platform.c:2252] link_change(): Netlink error changing link 10: <DOWN> mtu 0 (1) driver 'unknown' udi '/sys/devices/virtual/net/ppp0': No such device
Aug 24 23:44:25 MyArchBox NetworkManager[578]: <error> [1408949065.487153] [platform/nm-linux-platform.c:1777] delete_object(): Netlink error deleting 10.17.10.3/32 lft forever pref forever lifetime 1862-0[4294967295,4294967295] dev ppp0 src kernel: No such device (-31)
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: Terminated ppp daemon with PID 1945.
Aug 24 23:44:25 MyArchBox kernel: Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev- instead.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Terminating on signal 15
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Modem hangup
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 8 / phase 'network'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Connect time 0.0 minutes.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Sent 0 bytes, received 0 bytes.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: MPPE disabled
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 10 / phase 'terminate'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 11 / phase 'disconnect'
Aug 24 23:44:25 MyArchBox NetworkManager[578]: Connection terminated.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 1 / phase 'dead'
Aug 24 23:44:25 MyArchBox dbus[579]: [system] Rejected send message, 10 matched rules; type="error", sender=":1.51" (uid=0 pid=1938 comm="/usr/lib/networkmanager/nm-pptp-service ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.52" (uid=0 pid=1945 comm="/sbin/pppd pty /sbin/pptp 192.168.146.114 --nolaunc")
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** Message: nm-pptp-ppp-plugin: (nm_exit_notify): cleaning up
Aug 24 23:44:25 MyArchBox pppd[1945]: Exit.
Aug 24 23:44:25 MyArchBox NetworkManager[578]: ** (nm-pptp-service:1938): WARNING **: pppd exited with error code 16
Aug 24 23:44:45 MyArchBox NetworkManager[578]: <info> VPN service 'pptp' disappeared
If you've gotten this far, thank you for taking the time to read through all this! Any help that you can give would be much appreciated.
Last edited by greyseal96 (2014-08-27 15:20:02)

Hmm, not sure about the 3.16 series kernel, but I found that when I upgraded to kernel 3.18 the PPTP VPN also stopped working. This time, though, it was because, for some reason, there was a change in kernel 3.18 where the firewall kernel modules necessary for the VPN don't get loaded so the firewall won't allow some of the PPTP traffic from the remote side back in. Since the firewall is stateful, these modules need to be loaded so that the firewall can know that the incoming PPTP traffic from the remote side is part of an existing connection. Here's what my network manager logs looked like:
NetworkManager[619]: <info> Starting VPN service 'pptp'...
NetworkManager[619]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 31139
NetworkManager[619]: <info> VPN service 'pptp' appeared; activating connections
NetworkManager[619]: <info> VPN connection 'MyVPN' (ConnectInteractive) reply received.
NetworkManager[619]: <info> VPN plugin state changed: starting (3)
NetworkManager[619]: ** Message: pppd started with pid 31148
NetworkManager[619]: <info> VPN connection 'MyVPN' (Connect) reply received.
pppd[31148]: Plugin /usr/lib/pppd/2.4.7/nm-pptp-pppd-plugin.so loaded.
NetworkManager[619]: Plugin /usr/lib/pppd/2.4.7/nm-pptp-pppd-plugin.so loaded.
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (plugin_init): initializing
pppd[31148]: pppd 2.4.7 started by root, uid 0
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection'
pppd[31148]: Using interface ppp0
pppd[31148]: Connect: ppp0 <--> /dev/pts/5
NetworkManager[619]: Using interface ppp0
NetworkManager[619]: Connect: ppp0 <--> /dev/pts/5
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
NetworkManager[619]: <info> (ppp0): new Generic device (driver: 'unknown' ifindex: 7)
NetworkManager[619]: <info> (ppp0): exported as /org/freedesktop/NetworkManager/Devices/6
pptp[31150]: nm-pptp-service-31139 log[main:pptp.c:333]: The synchronous pptp option is NOT activated
pptp[31157]: nm-pptp-service-31139 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 1 'Start-Control-Connection-Request'
pptp[31157]: nm-pptp-service-31139 log[ctrlp_disp:pptp_ctrl.c:758]: Received Start Control Connection Reply
pptp[31157]: nm-pptp-service-31139 log[ctrlp_disp:pptp_ctrl.c:792]: Client connection established.
pptp[31157]: nm-pptp-service-31139 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 7 'Outgoing-Call-Request'
pptp[31157]: nm-pptp-service-31139 log[ctrlp_disp:pptp_ctrl.c:877]: Received Outgoing Call Reply.
pptp[31157]: nm-pptp-service-31139 log[ctrlp_disp:pptp_ctrl.c:916]: Outgoing call established (call ID 0, peer's call ID 25344).
pppd[31148]: LCP: timeout sending Config-Requests <===HERE IS WHERE THE CONNECTION FAILS BECAUSE THE MODULES AREN'T LOADED.
pppd[31148]: Connection terminated.
NetworkManager[619]: LCP: timeout sending Config-Requests
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 11 / phase 'disconnect'
NetworkManager[619]: Connection terminated.
NetworkManager[619]: <warn> VPN plugin failed: connect-failed (1)
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (nm_phasechange): status 1 / phase 'dead'
pppd[31148]: Modem hangup
pppd[31148]: Exit.
NetworkManager[619]: <warn> VPN plugin failed: connect-failed (1)
NetworkManager[619]: Modem hangup
NetworkManager[619]: ** Message: nm-pptp-ppp-plugin: (nm_exit_notify): cleaning up
NetworkManager[619]: <warn> VPN plugin failed: connect-failed (1)
NetworkManager[619]: <info> VPN plugin state changed: stopped (6)
NetworkManager[619]: <info> VPN plugin state change reason: unknown (0)
NetworkManager[619]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active.
NetworkManager[619]: ** (nm-pptp-service:31139): WARNING **: pppd exited with error code 16
NetworkManager[619]: <info> VPN service 'pptp' disappeared
To fix this, I had to add a file to the /etc/modules-load.d directory to have the modules loaded into the kernel at boot. I just created a file called netfilter.conf and put the following in it:
nf_nat_pptp
nf_conntrack_pptp
nf_conntrack_proto_gre
Not sure if this addresses your problem or not, but maybe it's worth a look.

PPTP VPN not working on OSX 10.9.2

My PPTP VPN to my office was working fine for more than 1 year.
However, in recently weeks it doesn't work anymore. The message I got as the following screenshot.
I believe the upgrade of 10.9.2 is the cause
I also have Windows VM (parallels) on this box (MBA2012mid), the Windows VPN work very well before and now.
It's very frustrating. (for me, VPN is used in urgent situation when I'm not in office). Can't believe Windows beat OSX at this feature.
Anyone have the same issue ? please share the solution. thanks
Update: Same issue happen on my iPhone5S (iOS 7.0.6)

You can try these steps in case of issues with web pages:
You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Hold down the Shift key and left-click the Reload button
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (Mac)
Clear the cache and cookies only from websites that cause problems.
"Clear the Cache":
*Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox > Preferences > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

L2TP VPN Error: "MPPE required but peer negotiation failed"

Clean Leopard Server install. Fairly clean Leopard client, too. Tried to setup an L2TP VPN service, and connect to it from the client machine, and I get this in the client's log:
11/6/07 2007-11-06 T 20:23:52 (PST) pppd[374] IPSec connection established
11/6/07 2007-11-06 T 20:23:52 (PST) pppd[374] L2TP connection established.
11/6/07 2007-11-06 T 20:23:52 (PST) pppd[374] Connect: ppp0 <--> socket[34:18]
11/6/07 2007-11-06 T 20:23:53 (PST) pppd[374] MPPE required but peer negotiation failed
11/6/07 2007-11-06 T 20:23:53 (PST) pppd[374] Connection terminated.
As far as I can tell from searching the web, MPPE should not even be involved (but I really don't know the protocol). If I setup a PPTP VPN on the same pair of machines all is well.
I really think this is a bug in either Leopard or Leopard Server. Anyone else bumping into this wall?
regards,
Bill.

I have the exact same problem. Hopefully Apple will fix this soon. I'm trying to connect to a Linux Box with OpenSwan and L2tpd.
My Logs:
Leopard:
Dec 2 14:43:44 MRiedel-PB-G4 pppd[18603]: L2TP connecting to server XXXXXXXX...
Dec 2 14:43:47 MRiedel-PB-G4 pppd[18603]: IPSec connection started
Dec 2 14:43:48 MRiedel-PB-G4 pppd[18603]: IPSec connection established
Dec 2 14:43:51 MRiedel-PB-G4 pppd[18603]: L2TP connection established.
Dec 2 14:43:51 MRiedel-PB-G4 pppd[18603]: Connect: ppp0 <--> socket[34:18]
Dec 2 14:43:51 MRiedel-PB-G4 pppd[18603]: MPPE required but peer negotiation failed
Dec 2 14:43:52 MRiedel-PB-G4 pppd[18603]: Connection terminated.
Dec 2 14:43:52 MRiedel-PB-G4 pppd[18603]: L2TP disconnecting...
Dec 2 14:43:52 MRiedel-PB-G4 pppd[18603]: L2TP disconnected
And on the Linux Box:
Dec 2 23:43:47 bt-server pluto[2941]: "L2TP-PSK"[9] 63.231.xxx.xxx #16: STATEQUICKR2: IPsec SA established {ESP=>0x09c22235 <0x8522bdef xfrm=AES128-HMACSHA1 NATD=63.231.52.188:4500 DPD=none}
Dec 2 23:43:49 bt-server l2tpd[6376]: control_finish: Peer requested tunnel 8 twice, ignoring second one.
Dec 2 23:43:49 bt-server l2tpd[6376]: Connection established to 63.231.xxx.xxx, 56177. Local: 51805, Remote: 8. LNS session is 'default'
Dec 2 23:43:49 bt-server l2tpd[6376]: Call established with 63.231.xxx.xxx, Local: 56732, Remote: 18603, Serial: 1
Dec 2 23:43:49 bt-server pppd[7541]: pppd 2.4.3 started by root, uid 0
Dec 2 23:43:49 bt-server pppd[7541]: using channel 2105
Dec 2 23:43:49 bt-server pppd[7541]: Using interface ppp2
Dec 2 23:43:49 bt-server pppd[7541]: Connect: ppp2 <--> /dev/pts/4
Dec 2 23:43:49 bt-server pppd[7541]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x6d3895f7> <pcomp> <accomp>]
Dec 2 23:43:49 bt-server pppd[7541]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4d928d7a> <pcomp> <accomp>]
Dec 2 23:43:49 bt-server pppd[7541]: sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x4d928d7a> <pcomp> <accomp>]
Dec 2 23:43:49 bt-server pppd[7541]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x6d3895f7> <pcomp> <accomp>]
Dec 2 23:43:49 bt-server pppd[7541]: sent [LCP EchoReq id=0x0 magic=0x6d3895f7]
Dec 2 23:43:49 bt-server pppd[7541]: sent [CHAP Challenge id=0x12 <4885f2c708e0dbd85a3cf7cf60ed6b24>, name = "IPsecVPN"]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [LCP EchoReq id=0x0 magic=0x4d928d7a]
Dec 2 23:43:50 bt-server pppd[7541]: sent [LCP EchoRep id=0x0 magic=0x6d3895f7]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [LCP EchoRep id=0x0 magic=0x4d928d7a]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [CHAP Response id=0x12 <c574d7703411572a98de35e99f3d81ad00000000000000000b4906c55495f2727310659600c5c1 405145b06079ad9fbe00>, name = "xxx"]
Dec 2 23:43:50 bt-server pppd[7541]: sent [CHAP Success id=0x12 "S=2C78FC23BCE0D753988BB8A6AA9EB3EB22326318 M=Access granted"]
Dec 2 23:43:50 bt-server pppd[7541]: sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
Dec 2 23:43:50 bt-server pppd[7541]: sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.184.2>]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
Dec 2 23:43:50 bt-server pppd[7541]: sent [CCP ConfRej id=0x1 <mppe +H -M +S +L -D -C>]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [LCP TermReq id=0x2 "MPPE required but peer negotiation failed"]
Dec 2 23:43:50 bt-server pppd[7541]: LCP terminated by peer (MPPE required but peer negotiation failed)
Dec 2 23:43:50 bt-server pppd[7541]: sent [LCP TermAck id=0x2]
Dec 2 23:43:50 bt-server pppd[7541]: rcvd [CCP ConfRej id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
Dec 2 23:43:50 bt-server pppd[7541]: Discarded non-LCP packet when LCP not open
Dec 2 23:43:50 bt-server l2tpd[6376]: control_finish: Connection closed to 63.231.xxx.xxx, serial 1 ()
Dec 2 23:43:50 bt-server pppd[7541]: Terminating on signal 15
Dec 2 23:43:50 bt-server pppd[7541]: Modem hangup
Dec 2 23:43:50 bt-server pppd[7541]: Connection terminated.
Dec 2 23:43:50 bt-server pppd[7541]: Connect time 0.1 minutes.
Dec 2 23:43:50 bt-server pppd[7541]: Sent 41 bytes, received 10 bytes.
Dec 2 23:43:50 bt-server pppd[7541]: Exit.
Even if I force MPPE on the linux side, I get the same error. Please fix!
Regards

Macbook Wireless Driver Incompatible with Dual Band Access Points & PPTP VPN with MPPE Enabled.

Configuration:
Local Client: Macbook Pro 8,1 (Dual boot 10.8.2 & Windows 7 x64)
Local WLAN AP: WiFi dual band access points (I do not have admin access to)
ISP: TWC Road Runner
External VPN Server: Poptop PPTPD server v1.3.4 (I do have admin access to)
Problem:
There is a Macbook BCM4331 driver incompatibility that spans across both OS X and Windows 7 when connecting to a PPTP VPN through a local dual band access point.
The same Macbook (booted into either OS X 10.8 or Windows 7) cannot maintain a ping/connection to the PPTP server when connected to a local dual band (2.4GHZ/5GHZ) WiFi access point.
Macbook connects and remains connected to the PPTP server (as shown in connection status,) but no traffic will pass through VPN once the connection has "dropped" internet traffic. Flood ping to the VPN server initially replies with expected <30ms ping time. Once internet traffic is passed across VPN, ping fails and traffic stops completely.
• Any other wifi client machines & OS using same dual band AP can connect to VPN and maintain flood ping to PPTP server and pass all traffic or even split tunnel. I've tested different computers using Windows XP, Windows 7, Android 4.1, iOS 6.0.1 etc. No problems at all.
• Macbook can maintain flood ping and pass traffic to PPTP server when connected to a different standard 2.4GHZ access point.
• Macbook can maintain flood ping and pass traffic to PPTP server when connected via Ethernet on same LAN as dual band AP's.
• Macbook can maintain connection/ping by disabiling MPPE encryption on the PPTP server. Running an unencrypted VPN is not an option for me however.
• Macbook can maintain connection/ping whenn booted into Windows 7 natively and disabling 2.4 band through Device Manager > Advanced tab > Disable bands > "Disable 802.11g/b".
To fix this problem, I would propose that Apple allow OS X users to disable 2.4GHZ in OS X. Doing so should allow PPTP + MPPE when connected via dual band routers as it does in Windows 7. I think asking them to rewrite the driver for OS X & Windows 7 is asking too much.
Credits:
I have been through so many forums, reconfigured the Macbook, the PPTP server, reformatted, tested and tweaked until my eyes bled. Here is a collection of threads of others with similar problems:
https://discussions.apple.com/thread/2778039?start=120&tstart=0
https://discussions.apple.com/thread/3202997?start=0&tstart=0
https://discussions.apple.com/thread/2136112?start=15&tstart=0
http://forums.macrumors.com/showthread.php?t=196438
https://discussions.apple.com/thread/2132652?start=0&tstart=0
http://comments.gmane.org/gmane.network.poptop/2373
https://discussions.apple.com/thread/1623154?start=0&tstart=0
https://discussions.apple.com/message/12514921?messageID=12514921#12514921
http://forums.macrumors.com/showthread.php?t=1101053
http://forums.macrumors.com/showthread.php?t=415087
https://discussions.apple.com/thread/1346301?start=0&tstart=0
https://discussions.apple.com/thread/2197122?start=0&tstart=0

I haven't heard anything back yet. I will update if I do.
Being that Apple takes pride in selling their own computers and writing their own drivers & software to match, the Macbook with OS X 10.8 should be a super polished, finely tuned machine. It's aggravating when I can't do relatively simple things which I can do on any other device & OS:
If you've read the first post, you know it's not possible to pass PPTP + MPPE on the Macbook Pro 8,1 with OS X 10.6+ or Windows 7 when connected to a dual band AP.
OS X also imposes a 130mbps limit on the 2.4Ghz band. I have no problems connecting @ 450mbps on 2.4Ghz with Windows 7. The range is much better than 5Ghz as expected when there aren't any neighboring AP's for interference. I've also never received interference with Bluetooth devices.
There have been a couple times where some things don't plain work right and the flexibility to fix them as an "Apple knows better than the user" policy is restricted. In most cases, perhaps Apple does know better. In this case, there is definitely a problem with the BCM4331 driver. If it "just worked" this topic wouldn't have been created.

Deploy PPTP VPN Settings for remote workers

Hi All,
I need to use applescript, so that we can email / copy the script to our remote users and they can execute it to setup PPTP VPN to our work vpn server.
I have never used applescript and google led me to a apple forum post with the following, the problem I am facing is, that I can’t seem to name the VPN connection, neither i can give it a pptp vpn server address, dns, default gateway and any custom routes.
How can I add those fields / enteries in ?
http://discussions.apple.com/thread.jspa?messageID=10368307
tell application “System Preferences”
reveal pane “Network”
activate
tell application “System Events”
tell process “System Preferences”
tell window 1
click button “Add Service”
tell sheet 1
click pop up button 1
click menu item “VPN” of menu 1 of pop up button 1
delay 1
click pop up button 2
click menu item “PPTP” of menu 1 of pop up button 2
click button “Create”
end tell
click button “Apply”
end tell
end tell
delay 1 — optional (just for visual feedback)
keystroke “w” using {command down}
end tell
end tell
will be grateful for your help on this
Thanks

I came across the same problem, I posted a solution here in case anyone else comes across it: http://blog.affirmix.com/2011/01/12/how-to-configure-a-vpn-in-mac-os-x-usingappl escript/

IVPN starts, but "the pptp-vpn server did not respond. Try reconnecting."

Hi. I am new to VPN, and I just got the software iVPN from Macserve, and the server starts successfully, using either PPTP or L2TP:
But the connections from my network do not connect. Every time I click on "connect" for either network connection, I get the error "the pptp-vpn server did not respond. Try reconnecting."
I set up both connections in my Network Preferences according to the support page (http://macserve.org.uk/support/ivpn/):
My Airport Express configurations have never given me any problems with my home network:
And I think that I forwarded the ports properly (even though my firewall is not activated):
What am I doing wrong?

The Apple routers can be a problem on vpn passthrough.
Ports that are required for vpn are more complicated ..
See earlier post.. eg How do I set up L2TP VPN?
Ports for PPTP which you have opened manually.. are not valid for L2TP.. so you need several more ports opened.
The problematic ones are GRE and ESP which are protocols not ports.
I think you can pretty well assume the apple router running anything that has BTMM in it won't work.. since it will need the port 500 for itself.
On the old express try going back to 7.6.1 firmware.. I have to say I don't use the express.. lots of extreme and TC.. so their firmware issues are slightly different so firmware versions for the express are somewhat different.
Try not to use both port forwards (mapping if you must).. and DMZ.. they can fight each other.. if DMZ doesn't work it is better to turn it right off and forward all the required ports.
Let me recommend a test.
Plug your cable modem directly into the computer running the VPN.. so you have no NAT router in front of it.
Pay attention to the local firewall that apple runs and what ports you will need to open on it to get vpn to work.. this is your best chance to get remote vpn running. If you fail with the public IP on the computer it will certainly fail through NAT.. and generally local firewall will be an issue.
You should of course test that a client in the local lan can connect by the vpn.. it is always worth testing from the easiest configuration to the most complex.
So local lan just as you have now..
Then direct cable connection to the computer.
Then NAT router.. but you can pretty well assume apple routers are going to be problematic because apple want to dally at BTMM using same ports as IPSEC uses for L2TP.
My email is live.. roll your mouse over it and talk to me direct..

Connect Mac to Windows 2012 Server via VPN

Hello All,I'm having a bit of an issue connecting a Mac running Yosemite (OS 10.10) to my Windows 2012 Server via VPN. I'm able to connect all of my Windows 7 machines to the VPN using windows networking without any issues. I'm using my subdomain URL that points to my server that is used to provide access to the Remote Web Access portal on the the server. All Windows 7 computers connect right away and without any issue using their login.When I put the same information into the Mac it immediately denies the connection.Here are some of the details without revealing to much.Server = Windows 2012 R2Firewall = Sonicwall TZ400Connection I'm using for the Mac is pptp but, something tells me that I'm using the wrong protocol since I'm able to connect the Windows pc's using the https URL for the Remote Web Access portal.Thank you in advance for...
This topic first appeared in the Spiceworks Community

Hello All,I'm having a bit of an issue connecting a Mac running Yosemite (OS 10.10) to my Windows 2012 Server via VPN. I'm able to connect all of my Windows 7 machines to the VPN using windows networking without any issues. I'm using my subdomain URL that points to my server that is used to provide access to the Remote Web Access portal on the the server. All Windows 7 computers connect right away and without any issue using their login.When I put the same information into the Mac it immediately denies the connection.Here are some of the details without revealing to much.Server = Windows 2012 R2Firewall = Sonicwall TZ400Connection I'm using for the Mac is pptp but, something tells me that I'm using the wrong protocol since I'm able to connect the Windows pc's using the https URL for the Remote Web Access portal.Thank you in advance for...
This topic first appeared in the Spiceworks Community

Windows 8.1 PPTP VPN error 734

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