Connection to PPTP VPN

Good day! I encountered the following problem.
On the server side of my company's PPTP VPN is installed on Windows Server2008 R2 SP1 with the roles of DHCP and RASS. On the client side I have a Macbook Pro 13 (OS X 10.7 Lion), iPad 2 (iOS 5.1), iPhone 3GS (iOS 5.1), Windows 7 SP2 PC. I am the system administrator network - depends on me what the settings will be used in vpn.
After creating a vpn my Windows PC is easily attached to it and worked in with lan perfectly.
Also, all the Apple devices are connected to vnp - the connection is maintained without interruption for a long time, correct ip address and dns servers are set. However, I can not make even ping computers in LAN of may company by hostname or ip.
How do I make mac work fine in the corporate network via vpn?

Hi,
How about recreate a VPN connection? please have a try, In addition, you can check which updates installed recently and which of them most related with VPN or network.
Please make sure enabled the Use Default Gateway on Remote Network
setting in the VPN TCP/IP configuration.
Roger Lu
TechNet Community Support

Similar Messages

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.

Newest mac os x 10.9.1 cannot connect to PPTP VPN

I've just updated my mac to os x 10.9.1 this morning. After that my PPTP vpn no longer worked. Anyone knows what could I do?
Thanks!!!!

Hello Summerland1975,
Welcome to the HP Forums.
I see that you are having an issue with installing the printer to your Mac.
Please remove any cables that connect the printer to the Mac and leave them off. Please then click on the following link for the HP Officejet 7610 series Full Feature Software and Drivers - OS X 10.9 Mavericks.
If you are still having issues, please feel free to write me back.
Thank you.
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
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Cannot connect to PPTP VPN

am working on setting up a VPN on my MS Directaccess server. technically the vpn is up and running and working already. it is using a certificate that is issues to the DA server by the DA server. My domain joined PC's connect fine. I can also connect a non domain joined machine if I import that certificate into the PC. However I cannot connect any OSX clients or my android phone. We have opened up port 1723 on the firewall. I have tried to connect from my home and from another businesss locally to make sure it wasnt just my home router causing the issue for some reason.
I get this in the osx console log (I replaced the external IP with 1.1.1.1 for posting this online)
3/19/14 7:55:21 AM pppd[6282] pppd 2.4.2 (Apple version 412.5.70) started by admin, uid 501
3/19/14 7:55:24 AM pppd[6282] PPTP connecting to server '1.1.1.1' (1.1.1.1)...
3/19/14 7:55:24 AM pppd[6282] PPTP connection established.
3/19/14 7:55:24 AM pppd[6282] PPTP connection established.
3/19/14 7:55:24 AM pppd[6282] Connect: ppp0 <--> socket[34:17]
3/19/14 7:55:52 AM login[6318] USER_PROCESS: 6318 ttys001
3/19/14 7:55:54 AM pppd[6282] LCP: timeout sending Config-Requests
3/19/14 7:55:54 AM pppd[6282] Connection terminated.
3/19/14 7:55:54 AM pppd[6282] PPTP disconnecting...
3/19/14 7:55:54 AM pppd[6282] PPTP disconnected
On the directaccess server I get this in the event viewer everytime the OSX client tries to connect. This at least proves that I can at least connect to the server from the outside.
Event 20209, RasMan
A connection between the VPN server and the VPN client 24.97.100.42 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).
Im assuming this isnt a port or protocol issus since I can connect via my non domain joined Windows PC. Im out of ideas as to what I can do next

Here is a snapshot of my console
http://imgur.com/pYFprPk

Trouble connecting to PPTP VPN from a Windows XP computer

I am having problems getting OS X Server 10.6 to accept an incoming PPTP connection from a Windows XP Home client (I have had no problems connecting from an OS X client)
The error on the Windows side is "721" - Server did not respond.
The error in the VPN log is repeated several times until it timesout the connection attempt:
2010-06-03 15:35:16 EDT Incoming call... Address given to client = 10.110.128.103
Thu Jun 3 15:35:16 2010 : Directory Services Authentication plugin initialized
Thu Jun 3 15:35:16 2010 : Directory Services Authorization plugin initialized
Thu Jun 3 15:35:16 2010 : PPTP incoming call in progress from 'n.n.n.n'...
Thu Jun 3 15:35:16 2010 : PPTP connection established.
Thu Jun 3 15:35:16 2010 : using link 0
Thu Jun 3 15:35:16 2010 : Using interface ppp0
Thu Jun 3 15:35:16 2010 : Connect: ppp0 <--> socket[34:17]
Thu Jun 3 15:35:16 2010 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x4b27d2d8> <pcomp> <accomp>]
Thu Jun 3 15:35:16 2010 : rcvd [LCP ConfReq id=0x0 <mru 1400> <magic 0x14ae1f30> <pcomp> <accomp> <callback CBCP>]
Thu Jun 3 15:35:16 2010 : lcp_reqci: rcvd unknown option 13
Thu Jun 3 15:35:16 2010 : lcp_reqci: returning CONFREJ.
Thu Jun 3 15:35:16 2010 : sent [LCP ConfRej id=0x0 <callback CBCP>]
Thu Jun 3 15:35:18 2010 : rcvd [LCP ConfReq id=0x1 <mru 1400> <magic 0x14ae1f30> <pcomp> <accomp> <callback CBCP>]
Thu Jun 3 15:35:18 2010 : lcp_reqci: rcvd unknown option 13
Thu Jun 3 15:35:18 2010 : lcp_reqci: returning CONFREJ.
Thu Jun 3 15:35:18 2010 : sent [LCP ConfRej id=0x1 <callback CBCP>]
I have not been able to find anything useful via Google and the forum here on any of those error messages.
Thank you!
~ Jeremy

Okay, I decided to start over -- I reformatted and decide to try L2TP w/ IPSEC.
Got it working from a Mac client.
But when I try and connect from Windows XP (tried from several machines, too), it just times out and this time nothing in the error log.
After I try it several times, it eventually starts repeating the following errors every 5 or 10 seconds, and once it gets stuck in this loop, I can't connect from OS X either!
2010-06-03 18:07:27 EDT Health control check: server is sick...
2010-06-03 18:07:28 EDT Health control check: server is back to normal...
I have tried turning off the firewall completely on Windows, on the server, and on the router (using DMZ). Nothing seems to help.
I am about ready to tear my hair out! I would greatly appreciate any input, suggestions, etc. Thanks in advance!

How can I connect to a VPN via PPTP?

Hello,
I am a foreigner living in Taiyuan, the capital city of Shanxi Province, in China. I bought my macbook the summer of 2006. It still works perfectly except I cannot connect to the internet here at the university.
The internet here is split into two parts: local, and international. The ethernet connection allows me to access Chinese websites, but nothing else. It sounds counterintuitive but really, that's how it is. In order to get the rest of the world, all computers have to connect to a VPN via PPTP. Once this is established, viola, you have internet.
My problem is I cannot seem to connect to the VPN. I have used Internet Connect, I have created a VPN via PPTP, and put in all the right numbers...
the VPN IP is 202.207.128.115
the username is tyut
the password is tyut
But when I try to connect, it just says it can't. Nobody at the university has been helpful because they've never used a Mac before, and besides which, they aren't used to using a computer in English.
Can anyone help me? Or does anyone know how to get in touch with Apple Services in China (in English)?

Yeah, but that's not the problem here. I'm an English teacher at Taiyuan University of Technology (the irony does not escape me). The other teachers have PCs and can get full internet in their apartment. Since I have a mac, it's much harder for the school technicians to help me.
This is what my log says from the VPN connection (which does connect now.)
Mon Oct 29 16:05:52 2007 : PPTP connecting to server '202.207.128.115' (202.207.128.115)...
Mon Oct 29 16:05:52 2007 : PPTP connection established.
Mon Oct 29 16:05:52 2007 : Using interface ppp0
Mon Oct 29 16:05:52 2007 : Connect: ppp0 <--> socket[34:17]
Mon Oct 29 16:05:52 2007 : local IP address 172.30.1.252
Mon Oct 29 16:05:52 2007 : remote IP address 172.30.1.2
But I still can't load any pages from the VPN connection, just the regular ethernet connection (local internet). It doesn't work if I use IP addresses instead. :-/ I unselected "send all traffic over the VPN connection" because if it's selected, I don't even get local internet.
Looking online I found a possible fix, but it's for Windows XP. I don't know how to find the same settings on the Mac...For Windows XP:
1. Click Start -> Control Panel
2. Click on the Network and Internet Connections icon and then click "Network Connections". If your Control Panel is in classic view, simply double click the "Network Connections" icon.
3. Right click on the new VPN connection and select Properties
4. Select the "Networking" tab
5. Verify that Internet Protocol (TCP/IP) is highlighted
6. Click on the Properties button
7. Within the Internet Protocol (TCP/IP) properties window, click on the "Advanced..." button. Within the Advanced TCP/IP Settings window, REMOVE the check mark next to "Use default gateway on remote network"
8. Click "OK" to close all open windows
Where would the "default gateway on remote network" be on a Mac?

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)#

PPTP VPN on Server 2008R2 dropping users but acting like it is still connected

Hello,
I'm having a weird problem and I'm at a loss. We have a couple of cloud servers that form our remote office system. Basically, their is 1 DC, 1 Remote Desktop server, and 2 member servers being used as workstations. The users access these
server and resources via a PPTP VPN setup on the DC using RRAS. Everything has worked fairly well for the last year, but recently, my users have complained that they get disconnected at random times over the last couple of weeks. I was able
to observe the behavior yesterday and it goes something like this:
-The user is working fine
-The user tries to access a share, open a web page, tries to open a remote desktop session or notices that their Outlook client is disconnected and finds that nothing can be reached outside of the local machine. I tried pinging the DC address,
www.google.com, and the RDP server without success. From the server, I tried pinging the errant workstation without success. The server shows the connection to be active and the workstation does not disconnect the connection. On
one occasion, the problem just rectified itself and everything started working again. On all other occasions, the VPN had to be disconnected and reconnected. Note that some workstations are not reporting this problem.
-The user disconnects the VPN
-The user reconnects the VPN and usually everything is okay again for awhile, but sometimes they are disconnected within minutes.
This is new behavior, and no changes have been made by me and the Cloud support people tell me they haven't done anything. At this point, I'm not even sure how to go about troubleshooting it. The next time it happened, I was going to pull an ARP table
to see if anything looks amiss, but the only other avenue I have going is a call into the cloud services support to see if they can look for dropped or filtered information between our main office and our cloud server.
The only part of this setup that is a little bit different for me is the IPv4 settings in the RRAS console under properties of the server. Normally in the IPv4 settings, I select DHCP and allow the users to pull from the existing DHCP server. However, the
cloud support recommended against having a DHCP server, so instead of DHCP, I selected "use static IP address pool." I put 10.216.8.197 to 10.216.8.22 and the subnet mask is picking up from the server as 255.255.255.224 and the default gateway is
picking up from the server as 10.216.8.193.
Does anyone have any advice on how to troubleshoot this problem? What to try next if the cloud services support doesn't find anything, etc?
Thanks,
Jeffery Smith

Hi Jeffery,
According to your description, the VPN clients can connect the server at the beginning, but when we reconnected after going wrong, they were disconnected within minutes. Maybe the next time it happened, we could follow steps below to troubleshoot this issue.
Use ipconfig /all command in the VPN client when we set up VPN connection, to view which IP address the VPN client obtain.
Pull an ARP table from the VPN client to view the IP Address-Physical Address mappings as you said will help to troubleshoot this issue. The assigned IP address maybe used by other computers.
If the static IP address pool range from 10.216.8.197 to 10.216.8.22, due to the subnet is 255.255.255.224, there are 8 subnet in the 10.216.8.0/27 network. If the static IP address pool consists of ranges of IP addresses that are for a separate subnet,
then we need to either enable an IP routing protocol on the remote access server computer or add static IP routes consisting of the {IP Address, Mask} of each range to the routers of the intranet. If the routes are not added, then remote access clients can’t
receive traffic from resources on the intranet.
Best Regards,
Tina

Help with 10.4.5 VPN connection using PPTP to Windows 2003 Server

Hi,
I've looked on the discussions for an answer to this but have had no luck so far, can anyone help?
I'm trying to connect my 10.4.5 PB to my Wn2k3 server (with RRAS) using PPTP VPN, however I keep getting stuck at the Negotiating phase of the connection and finally get this error in OSX Internet Connect:
Could not negotiate a connection with the remote PPP server. Please verify your settings and try again.
I can connect from my Win XP laptop so no issues with the router etc, do I need to make any changes to the server config?
Thanks,
Sahajesh.
12" PB (G4) Mac OS X (10.4.5)

Resolved elsewhere.

Internet stops with PPTP VPN connections to ASUS RT-N66U VPN Router

I have a client with a small office network that has a few people working remotely from Windows 7 and 8 PCs. As an inexpensive solution the client opted to use a VPN router (ASUS RT-N66U) that supports PPTP so remote users could access the shared
files and SQL DB server.
The VPN connectivity for one client was working fine and then stopped working altogether so when the VPN connection is established all Internet and VPN access is stopped. This was especially troubling for me since I work remotely and cannot test or debug after
the VPN session has been connected. I checked the error logs and found nothing. Also there had been no new programs installed. And finally, I ran a full system antivirus scan with no issues found.
In case you are facing a similar issue, before trying something remotely that may not work, use the shutdown with reboot command in a COMMAND window and set a timer for something like 3 minutes to reboot in case you get stuck. (e.g. shutdown -r -t 180).
Problem: The two symptoms of the VPN connection failure are:
1) All Internet browsing stops working locally
2) No data can pass through the VPN tunnel
I created a virtual machine on my local network and replicated the client's environment. I experimented with nearly every setting in the VPN dialogue until and came to the final solution.
Solution: For the VPN adapter on the remote machines I configured DNS settings and used the remote as the default gateway.
* VPN adapter Networking IPV4 Properties for:
- DNS server 1: Main Office VPN Router IP Address
- DNS server 2: A public DNS server (Google is 8.8.8.8)
- I also checked the box to "register this connection addresses in DNS"
Note: Perhaps the local router would also have worked and DNS2 but I didn't test it.
I have documented this because after reading and searching among many Technical articles and the Microsoft support website, I was unable to find the solution that I came up with so I hope to help someone else.
Question1: - Can anyone tell me why the connectivity only works when 'use default gateway on remote network' is checked?
- I have disabled this option with some business class VPN routers and the connectivity still worked to the remote network but it does not work to the Asus router.
Question2: From the information provided can I determine where the problem lies?
Is it the:
1) Remote client PC
2) Remote client router
3) Home office VPN router (Asus RT-N66U)
If the true culprit cannot be determined yet, what steps do you recommend so I can isolate the true cause of the failure.
I appreciate any help so that I can be sure my solution is valid and pass along the findings to ASUS if it is their issue.

Thank you for the suggestion. I have successfully connected through the VPN router when the one client was unable to get VPN throughput working.
I looked at the routing tables with and without the VPN connection established. The differences are that:
1) when VPN is NOT active, there is a route from the local NIC IP to the Internet IP address of the local gateway
destination 68.109.82.xx
mask 255.255.255.0
gateway 192.168.0.1
interface 192.168.0.11
metric 21
2) when VPN IS active, the route to the Internet IP address of the local gateway is deleted and a persistent route to the VPN router local network has been added
Persistent route:
destination 192.168.21.0
mask 255.255.255.0
gateway 192.168.0.1
interface 192.168.0.11
metric 1

Cannot Make PPTP VPN Connection in 10.7.4

As far as I can tell everything is setup correctly but every time I try to connect I get this message:
You were disconnected by the communication device. Try reconnecting. If the problem continues, verify your settings.
Console Log:
6/25/12 5:11:40.382 PM pppd: PPTP connection established.
6/25/12 5:11:40.443 PM pppd: Connect: ppp0 <--> socket[34:17]
6/25/12 5:11:40.447 PM pppd: PPTP error when reading socket : EOF
6/25/12 5:11:40.447 PM pppd: PPTP error when reading header : read -1, expected 12 bytes
6/25/12 5:11:40.447 PM pppd: PPTP hangup
6/25/12 5:11:40.448 PM pppd: Connection terminated.
6/25/12 5:11:40.454 PM pppd: PPTP disconnecting...
6/25/12 5:11:40.455 PM pppd: PPTP disconnected
I am trying to connect to a Linux based VPN server. I have double checked my username and password multiple times, made sure the MTU is set the same on client, server, and router, and tried turning the encryption off and on on the server and the client. Nothing has made a difference, I get the same error every time. I am able to FTP and SSH into the Linux box.
Any suggestions of other things to try would be much appreciated. I saw some threads about editing config files on my mac but this is a brand new machine that I have had for a week running an OS that is on it's fourth point release. I really should not have to muck around with config files but at this point I'm ready to try anything.

Looks like it might be a configuration error on the server's end. The VPN makes a connection and tries to read the server's configuration to create a socket for communication, but runs into a formatting error when it is passed an "End of File" character instead of a required component of the socket. Can you try connecting to another VPN server, or perhaps try an L2TP connection instead of PPTP?

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!

Leopard Server PPTP VPN and Airport, can connect VPN but not AFP/SMB/VNC

I have on several occasions enabled a PPTP VPN service on Leopard Server and forwarded the appropriate ports in my Airport Extreme with this result: Outside clients can connect to the Leopard Server, but trying to connect to the server with AFP, SMB, Screen sharing or Remote Desktop over this VPN just times out.
The VPN seems to be working OK, but after establishing the VPN I can't use it. The client (iMac with Mac OS X 10.5.3) gets an IP, DNS, Router etc. from the network's DHCP.
I have tried setting the server as default host with no effect.
Everything is running the latest available updates.
Is there any bug/problem with PPTP VPN passthrough an Airport Extreme on the Server side? Is there anything that needs to be configured other than forwarding port 1723 on the Airport?

I had a similar problem. Hope my solution can help you.
Check if the routers on both sides of the VPN connection use the same ip address style (ie. 10.0.0.x, 192.168.1.x). If they both use the same style then they conflict.
I have a Airport Extreme at home and was VPNing to a server behind a time capsule. Both were using the 10.0.0.x style IP. I switched my home IP style to 192.168.1.x and everything worked right away.

Create PPTP VPN Connection

Hello, how could I setup or deploy several PPTP-VPN connections via AppleScript? (System Preferences-Network-Add Interface-VPN-PPTP)
Thanks in advance!

I must confess that I don't know much about network connections. However, using [GUI Scripting|http://www.macosxautomation.com/applescript/uiscripting/index.html], the following script (tested on my MacBook Pro) should add one "VPN (PPTP)" connection to the Network pane of you System Preferences:
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
Before using this script, the Accessibility Frameworks must have been enabled by clicking the checkbox labeled "Enable access for assistive devices" in the Universal Access System Preference pane.
Message was edited by: Pierre L.

[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.

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