[Bug 653826] [NEW] Thinkpad T60 drops iwl3945 wireless network connection every few minutes

[James Rieve]

Public bug reported:

IBM Thinkpad T60 (laptop computer) drops wireless network connection every few minutes. The radio must be turned off then back on using the switch on the front of the laptop to regain connection. Large data transfers seem to trigger the problem immediately - for example, an FTP session might make it through 4 or 5 mp3's before the network disconnects. 
The wireless router is a Netgear:
Hardware Version  	WGR614v10
Firmware Version 	V1.0.2.26_51.0.59NA
Region  	North America
Channel 	Auto (11)
Mode 	Up to 54 Mbps
The same behavior occurs with WEP turned on and WEP turned off and with various permutations of these settings on the wireless router:
Fragmentation Length (256-2346): [2346]   	
CTS/RTS Threshold (1-2347): [2347]  	
Preamble Mode [long or short]

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-25-generic 2.6.32-25.44
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices: aplay: device_list:223: no soundcards found...
Architecture: i386
ArecordDevices: arecord: device_list:223: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Date: Sat Oct  2 17:54:25 2010
HibernationDevice: RESUME=UUID=6bdced6b-626d-43e9-96f9-55e500814c53
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
MachineType: LENOVO 20074DU
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-25-generic root=UUID=891e43d0-b185-4f97-835b-d3abb3004474 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 08/27/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 79ETE5WW (2.25 )
dmi.board.name: 20074DU
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr79ETE5WW(2.25):bd08/27/2009:svnLENOVO:pn20074DU:pvrThinkPadT60:rvnLENOVO:rn20074DU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20074DU
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing networking

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Thinkpad T60 drops iwl3945 wireless network connection every few minutes
https://bugs.launchpad.net/bugs/653826
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