Wired "dhcp ip lease attempt failed"/no internet

Hi, I've been using netcfg on arch for a couple months now and never had trouble with it until today, I just changed internet carrier and the guy came install the modem here and I tried to plug my laptop to it and I can't get internet. Before whenever I plugged an Ethernet cable it would connect automatically because of ifplugd. I use the profile "ethernet-dhcp" from the examples that I copied to /etc/network.d. When I plug the wire, internet doesn't work so I tried : netcfg -a : Done, netcfg ethernet-dhcp and get "dhcp ip lease attempt failed".
I read the forums and tried some solution proposed to people with same error message but with wireless and sometimes I can connect to the profile, but I still don't have internet.
I've plugged the cable in my eepc running win7 and it works (I'm writing this from the eepc). Also the link light flashes on the modem And on my T61 when I plug the cable in the ethernet slot. I tried a static profile with the same ip as my eepc but no joy.
any suggestions ?
thank you

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Netcfg WirelesLAN gives error "DHCP IP lease attempt failed" [SOLVED]

i couldn't find a solution for this on the forums, though it seems to be a well known problem ...
the drivers for my network device eth1 (zd1211) are installed and it is detected by iwconfig after a fresh arch install.
the file WirelessLAN is set up like this:
CONNECTION="wireless"
INTERFACE=eth1
SCAN="yes"
SECURITY="wpa"
ESSID="..."
KEY="..."
IP="dhcp"
TIMEOUT=20
but a netcfg2 WirelessLAN gives me:
:: WirelessLAN up [BUSY]
DHCP IP lease attempt failed [FAIL]
any ideas ???
Last edited by fdrebin (2008-09-28 16:13:20)

Hi.
I got the same problem since dhcpd was updated during the last full-system-upgrade (-Suy).
My profile is the following:
CONNECTION="ethernet"
DESCRIPTION="..."
INTERFACE=ra0
IP="dhcp"
DHCP_TIMEOUT="30"
PRE_UP="ifconfig ra0 up; iwconfig ra0 essid Ranger channel 9 mode managed"
I know that this config is very ugly, but it worked.
I have got another config, that may look better for you, but I don't know if it works. I created it today. If I try this new profile, I get the same error.
In the past configs like this led to other errors. So I made the ugly config above.
CONNECTION="wireless"
DESCRIPTION="..."
INTERFACE=ra0
SCAN="yes"
SECURITY="none"
ESSID="Ranger"
IP="dhcp"
DHCP_TIMEOUT=30
Do you have any hints, how I can get more a detailed error report. Downgrading dhcpd would be a good idea, too. Any hints for that?
Thanks for your help.
Alpha

Netcfg laptop wireless - "DHCP ip lease attempt failed"??

hey folks. just loaded arch onto a toshiba laptop. in the process of configuring wireless, i followed the netcfg config instructions in the wiki. It worked fine the first time, but when I rebooted every subsequent time i tried to connect I get the "DHCP IP lease attempt failed" error. IN my logs i get absolutely nothing helpful - just "wlan0: rebinding lease of 172.16.0.138" and "wlan0: timed out". Of course, when I had Windows XP on the laptop it had zero problems connecting to the network, and it makes no damn sense why I was able to connect intially but each time after that it times out. My router has no problems.
I did a forum search and someone suggested that this was because of a "bug" and to delete the file "/var/lib/dhcpcd/dhcpcd-wlan0.lease" file. I did this, and was able to connect successfully. But this is not a solution; am I really supposed to delete the lease EVERY time I reconnect/reboot the machine? Doesn't make any sense at all.
Can ANYONE please help on this? I can post whatever config file/log info you need. This seems like it should be a simple setup, but I've come to realize nothing's ever simple in the linux world.... btw my network uses WPA2. There wasn't anything in the wiki about WPA2 (must be really really old, huh?); could this be part of the problem?

Alternatively, try adding
PRE_UP=' [ -e /var/lib/dhcpcd/dhcpcd-wlan0.lease ] && rm /var/lib/dhcpcd/dhcpcd-wlan0.lease '
to the profile with the problem.
Edit: I misspelled "dhcpcd" in the code above.
Last edited by alexandrite (2010-08-15 14:54:33)

[SOLVED] netcfg DHCP IP lease attempt failed

I'm trying to configure my network settings, I made a profile, netcfg recognizes the profile, but when it loads I get that error (DHCP IP lease attempt failed). Here is my profile...
CONNECTION='wireless'
INTERFACE='wlan0'
SECURITY='none'
ESSID='my network name'
IP='dhcp'
DCHP_TIMEOUT='30'
Last edited by oldstutz (2010-07-30 18:33:54)

jogan wrote:
jogan wrote:
Do you have any idea how to load the rt2860 driver from /lib/firmware/rt2860.bin?
My attempt to load the driver with MODULES in /etc/rc.conf has been unsuccessful.
oldstutz wrote:RaLink RT2860, and I have rt2860sta in my modules
I've battled this issue for weeks on my notebook ... wireless worked on Arch (2009.08)
last year. Seems to me now the culprit maybe rt2860sta.
OK, let's check
lsmod | grep -i rt2860

Wireless: DHCP IP lease attempt failed

Hi,
did an upgrade today and now I get the above error message, when trying to connect to my router with netcfg2. The exact error message is like following:
[root@tux matthias]#
[root@tux matthias]# netcfg2 home
dhcpcd: wlan0: ignoring DHCP message; no Server ID
dhcpcd: wlan0: ignoring DHCP message; no Server ID
dhcpcd: wlan0: ignoring DHCP message; no Server ID
dhcpcd: timed out
:: home up - DHCP IP lease attempt failed [FAIL]
My /etc/network.d/home looks like that:
CONNECTION="wireless"
INTERFACE=wlan0
QUIRKS=(prescan preessid)
SCAN="yes"
SECURITY="wpa"
ESSID="wirelessbox"
KEY="..."
IP="dhcp"
TIMEOUT=30
I did nothing except updating. Everything worked fine before that.
Any hints?
EDIT: I added the QUIRKS line after getting the error message, because a guy on IRC suggested that. This didn't help either.
Last edited by mamr (2009-05-11 12:46:11)

rsmarples wrote:
dhave wrote:
rsmarples wrote:You can't "turn the message off" as such. You you see the ignoring message then the DHCP packet really is ignored. So if you see that message AND dhcpcd still works with a proper IP (ie not ipv4ll) then you have 2 DHCP servers running on your network and one of them is fautly.
Thanks for the explanation. Is this a problem to have a broken DHCP server running for no purpose? Is this hurting my gas mileage or anything?
Well, you're probably better off finding the faulty router and disabling it.
dhcpcd presently selects and uses the first DHCP working reply it gets and if the server is "fixed" to send ServerID then you could get conflicting lease information.
I see I have a lot to learn. The reason it's finding two routers is that I have a modem-router and then, in another part of the house, an access point that I've configured as a repeater (actually, since it has a separate ssid, maybe it's not considered a repeater; I don't know).
When I move my laptop from my office into the living room, I often switch from connecting through the "repeater" and connect directly to the modem-router. It's at this point that I get the messages about "no server ID". So, in fact, dhcpcd is doing what it's supposed to be doing, I guess.
I need to do some reading and try to figure out if my setup could be cleaned up so as to avoid lease conflicts or whatever. When I fool with network stuff, I'm always working beyond my level of understanding. I usually just fiddle until I get things to work, which means I probably could do a lot to streamline and improve performance.

DHCP IP lease attempt failed

Hello
I have a problem with netcfg. It works perfectly at home. However, now that I am trying to connect to another router it keeps giving me this error and I can't figure out why and how to fix.
I have read several discussion on this forum on netcfg errors, however, none of them helped me, so I am asking here again.

More details required - start with "wired or wireless?", then move on to "have I created a profile for the new network?".
If wired, make sure your link lights are on, then try a static IP.
If wireless, try a manual connection, as described in the wiki's wireless page.

[SOLVED] netcfg "IP lease attempt failed" on ethernet connection

Since the latest update today I can't connect to the Internet (using an ethernet cable) any more.
# NETCFG_DEBUG="yes" netcfg cable
DEBUG: Loading profile cable
DEBUG: Configuring interface eth0
:: cable up [BUSY]
DEBUG: status reported to profile_up as:
DEBUG: Loading profile cable
DEBUG: Configuring interface eth0
DEBUG: ethernet_iproute_up ifup
DEBUG: ethernet_up dhcpd -qL -t 30 eth0
DEBUG:
> DHCP IP lease attempt failes.
DEBUG: profile_up connect failed
[FAIL]
System: Arch 64
Does anyone have any idea what might be wrong? Not sure where to start there, as the interface eth0 seems to be up and all right under ifconfig.
Thanks for any hints.
Last edited by JackH79 (2011-12-01 00:53:19)

Thanks very much for your suggestions, ewaller.
Weirdly enough though, this morning I came into work, plugged in the cable and, voilà, it worked straight away.
Maybe it's just that time of the month.
Anyway, thanks again to you and cybertorture. I'll mark this as solved for now.
EDIT: Just a little follow up to make it a bit more embarassing: I just realised that it was actually the port of the switch that's broken. So thanks to ewaller for stating the obvious
Last edited by JackH79 (2011-12-01 07:05:25)

Iwl4965, netcfg2 lease attempt failed

I'm trying to get my iwl4965 running with netcfg2, but i keep getting stuck on the actual connection/dhcp process. These are the packages i have installed:
core/wireless_tools 29-2 [installed]
Wireless Tools
core/iwlwifi-4965-ucode 228.57.2.21-1 [installed]
Intel wireless firmware for IPW4965 (iwlwifi driver)
core/wpa_supplicant 0.5.10-1 [installed]
A utility providing key negotiation for WPA wireless networks
core/netcfg 2.0.6-1 [installed]
Network configuration and profile scripts
test.profile:
CONNECTION="wireless"
INTERFACE=wlan0
SCAN="no"
SECURITY="wpa"
ESSID="Meow"
KEY="mypasswd"
IP="dhcp"
TIMEOUT=20
iwlist wlan0 scan:
Cell 02 - Address: 00:19:CB:09:35:EE
ESSID:"Meow"
Mode:Master
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=85/100 Signal level=-48 dBm Noise level=-127 dBm
Encryption key:on
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Preauthentication Supported
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Extra:tsf=0000000c3c85d01a
when i issue a netcfg2 test.profile, it's status says BUSY and stays like that indefinitely. when i then press control-c i get an extra line saying the DHCP lease failed:
:: Meow up [BUSY]
^C - DHCP IP lease attempt failed [FAIL]
dmesg:
ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Initial auth_alg=0
wlan0: authenticate with AP 00:19:cb:09:35:ee
wlan0: RX authentication from 00:19:cb:09:35:ee (alg=0 transaction=2 status=0)
wlan0: authenticated
wlan0: associate with AP 00:19:cb:09:35:ee
wlan0: RX AssocResp from 00:19:cb:09:35:ee (capab=0x51 status=0 aid=2)
wlan0: associated
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: no IPv6 routers present
wlan0: deauthenticate(reason=3)
could it be something trivial i'm missing? i've used wireless without problems before using networkmanager, but i really would like to use netcfg2 instead.

Hello, there seems to problems with this iwl4965-driver.
Those guys have similar problems:
http://bbs.archlinux.org/viewtopic.php?id=53300
and here is another problem with this driver described:
http://bbs.archlinux.org/viewtopic.php? … 42#p396142
So, it seems as these problems are related, so just try to use an older driver version.

Dhcp ip lease faile? netcfg

Hey,
I am having an issue with netcfg and my fresh install. I have always had no problem with connecting to my wifi manually at the terminal. I read the guide about getting my wifi up at boot. I have created a profile and so on. however it works 50 percent of the time? some time i boot up no problem and the others i get
"dhcp ip lease attempt failed"
after i boot i can connect manually?
any help here would be great!
Thanks
Paul

Try increasing the dhcp and/or carrier timeout (instructions can be found here).

Why can't Windows 7 be forced to use DHCP broadcast lease renewal?

I have been going to this coffee shop for 11 years. It still has the same ADSL-based wireless internet service (an old wireless access point connected to the internet through ADSL).
The ONLY way to communicate with the DHCP server in this wireless AP is via broadcast - lease renewal requests to the DHCP server via direct IP address are IGNORED. On top of that, the DHCP IP assignment pool is rather small, so to compensate the DHCP lease
time is set to expire every 10 minutes. This is no problem normally, because an active DHCP client will request a lease renewal at half the lease time, or 5 minutes before the lease expires.
Here is my problem: I had my registry setup to force DHCP broadcast and all was happy - UNTIL Microsoft decided to have an update ADD a "toggle broadcast" flag to the registry and make it impossible to override (so far, in spite of the kb928233
page that supposedly tells you how to do so). Ever since then, I lose my DHCP lease (and therefore my internet connection) EVERY 10 MINUTES.
BTW, the KB928233 page has manual registry editing instructions that are so poorly written that at least 2 or 3 different interpretations of those instructions exist. I tried at least 3 different interpretations of those instructions - none worked. A good
part of the problem is no examples were given of what the resulting key tree should look like in regedit.
I have invested at least 2 days in Google searches and various attempts to get these flags set the right way again - all to no avail. If I can't figure out how to solve this problem in 2 days of trying something is dreadfully wrong. Again, with emphasis,
this USED TO WORK until somebody decided to put in a windows update that broke it.
All I want to know is: for a particular wireless connection how to force broadcast DHCP lease renewal. Some update in the last several months seriously broke that, making it nearly impossible to force broadcast mode. Oh yeah, it does a broadcast renewal
request EVENTUALLY - AFTER THE CONNECTION WAS TERMINATED! That is useless - I just lost my remote terminal session or file transfer. I need it to do the broadcast request BEFORE the lease terminates.

About 3 years ago (IIRC), when I first encountered this problem I used Wireshark to see what was going on. In the link you gave, the second bullet point under item 1 states that a broadcast DHCP renewal request would be given at 87.5 percent of the lease
time. Wireshark never indicated that such a broadcast renewal went out. It did show the directed request at the 50% point.
There is one other thing that may be relevant: at the time this problem re-appeared several months ago, a new registry flag also appeared: DhcpConnEnableBcastFlagToggle which was set to 1. I didn't put it there, so I surmise it came from a Microsoft update.
At this same time the DhcpConnForceBroadcastFlag that I had set to 1 to fix my problem had been reset to 0, thus re-creating my problem.
I have not looked at the traffic with Wireshark this time around, but I do know that I could use regedit to set the DhcpConnForceBroadcastFlag to 1, but 10 minutes later (at the exact second of the DHCP lease expiration) the connection was momentarily interrupted
and when I did a regedit refresh, DhcpConnForceBroadcastFlag was now reset to 0 with a new lease expiration and *start* time.
I suspect Windows rather than the access point for this reason: on a hunch last night, I tried stopping the DHCP client service, using regedit to set the DhcpConnForceBroadcastFlag to 1, then starting the DHCP client service. After this, at the DHCP lease
expiration time there was no interruption of the connection, the DhcpConnForceBroadcastFlag was still 1 afterwards, and the DHCP lease time had been extended another 10 minutes with no new DHCP lease start time.
So now my problem appears to be solved once again - and hopefully not temporarily this time.
The laptop I am using has Windows 7 Home Premium edition with SP1 on it with all the latest updates. It does not appear to me to behave in the manner given in your TechNet note on Lease Renewals. If it would behave that way, I would not have had this problem.
I am fully aware that the KB I list is for Vista - it was the only information I could find in what otherwise appears to be a void of information.

Sep 02 20:31:01    Severity:4    DHCP Client lease rejected from IPv4 router addr , MAC addr

Problem:
Time Capsule kept loosing connectivity from internet modem. ISP has no records of outages.
Logs:
Sep 02 20:31:01    Severity:4    DHCP Client lease rejected from IPv4 <router addr>, MAC <addr>
Resolution:
Make sure you TC is not connected to the same coax cable that the cable box is connected to.
Although, the system may work just fine for quite some time, eventually service will be disrupted by some device attempting to connect over and over.
For some reason, Time Capsule doesn't perform well when a device attempts to authenticate over and over, even if they device clearly isn't part of the Access Control List or even have the correct password.
So, in this case the the offending mac address was Scientific Atlanta Device, which was my cable box.
Regards!

I have seen the same issue with my iOS and Mac OS devices (iPhone and MacBook Pro). I have written my own DHCP server (http://notebook.kulchenko.com/embedded/dhcp-and-dns-servers-with-arduino) and have had troubles getting my devices to connect (Windows Vista and Ubuntu devices connect fine). I suspect that this problem happens because the DHCP Offer message is sent to a broadcast address, even though (at least in my case) the broadcast flag is off in the DHCP Discover message I see.
Unfortunately you didn't include the Discover message, so I can't tell for sure, but if it indeed has the broadcast flag set to 0, then the server should send the response message using unicast as per DHCP spec (http://www.ietf.org/rfc/rfc2131.txt, section 4.1):
If the broadcast bit is not set and 'giaddr' is zero and
   'ciaddr' is zero, then the server unicasts DHCPOFFER and DHCPACK
   messages to the client's hardware address and 'yiaddr' address.
So, it seems like in this case the server may be at fault, even though it would be nice for Mac OS to accept broadcast responses (and would solve my problem too).
Can someone confirm that Mac OS does not accept broadcast responses to DHCP Discover and DHCP Request messages? Thanks.
Paul.

I cannot get my iMac with built-in airport to allow internet connections to Nook and PS3. The devices access the network, but internet connection fails. Internet sharing is enabled, network security (WEP, WPA) is completely off. What to check next?

I cannot get my iMac with built-in airport wi-fi to allow internet connections to Nook and PS3. The devices access the network, but internet connection fails. Internet sharing is enabled, network security (WEP, WPA) is disabled. What to check next?

On an additional note, I've purchased a wireless router and everything connected on the first attempt. It just vexes me that the built-in wireless isn't working as a router. Is this another example of "Mac only plays with Mac"?

Netcfg wired dhcp issue

CONNECTION="ethernet-iproute"
DESCRIPTION="A basic dhcp ethernet connection using iproute"
INTERFACE="eth1"
IP="dhcp"
DHCP_TIMEOUT=30
DHCLIENT=no
I can connect fine at my home, however at my mothers this always fails. I have even tried static and it still fails. I have her on one of those Linksys Powerline setups for right now and it works on her windows based laptop.
I am running latest Arch with DWM 5.6
pink

Have you tried to do this manually, with out netcfg?
If so what is the result of your attempt, where does the attempt fail? As many details as posible would be appreciated

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Its works for other users, its only happened for one specific user only? I didn't check the APPSRV.LOG file? what needs to be checked in APPSRV.LOG, I can ask my infra team to check, because I don't have app server access to check log file.

HP 2000-2b16NR Recovery Attempt Failed Windows 8 64bit

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-the tip here about changing year in BIOS may help:
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Wired "dhcp ip lease attempt failed"/no internet

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