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[Bug 993585] Re: Dropping WLAN connection every 7-10 minutes


JPedro, as per http://download.lenovo.com/express/ddfm.html an update is
available for your BIOS (1.52). If you update to this following
https://help.ubuntu.com/community/BiosUpdate , does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see

Thank you for your understanding.

** Tags added: bios-outdated-1.52 regression-release

** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

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  Dropping WLAN connection every 7-10 minutes

Status in “linux” package in Ubuntu:

Bug description:
  Kern.log says this

  May  2 23:52:29 jpt-ThinkPad-SL410 kernel: [ 2040.220779] wlan0:
  deauthenticating from ca:6c:87:ab:dc:2c by local choice (reason=3)

  And then continues to associate again with the AP, I have seen
  suggestions that power off for interface powermanagment was a working
  work around, but it does not work in my case. And the earlier bug
  report was closed with a resolved status.

  wlan0     IEEE 802.11bgn  ESSID:"ZyXEL_DC2C"  
            Mode:Managed  Frequency:2.412 GHz  Access Point: CA:6C:87:AB:DC:2C   
            Bit Rate=150 Mb/s   Tx-Power=14 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=59/70  Signal level=-51 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:118  Invalid misc:46   Missed beacon:0

  I did not have this issue before upgrading to 12.04 and the 12.04
  installation is a clean one, SSD was formated etc, before installing
  ie not an upgrade from 11.10.

  jpt@jpt-ThinkPad-SL410:/var/log$ lsb_release -rd
  Description:	Ubuntu 12.04 LTS
  Release:	12.04

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.37
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  Uname: Linux 3.2.0-24-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC0:  jpt        1734 F.... pulseaudio
   country CH:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20)
   	(5250 - 5330 @ 40), (N/A, 20), DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
   Card hw:0 'Intel'/'HDA Intel at 0xf2a00000 irq 50'
     Mixer name	: 'Intel Cantiga HDMI'
     Components	: 'HDA:10ec0269,17aa212a,00100004 HDA:80862802,80860101,00100000'
     Controls      : 21
     Simple ctrls  : 9
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6JHT48WW-1.168000'
     Mixer name	: 'ThinkPad EC 6JHT48WW-1.168000'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Wed May  2 23:52:58 2012
  HibernationDevice: RESUME=UUID=8542dd9a-5b6c-4eeb-a731-ca17751db6d9
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: LENOVO 2842AKG
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=c4406791-705e-4b85-ba4f-2c21efad7da0 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/17/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6JET58WW (1.16 )
  dmi.board.name: INVALID
  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:bvr6JET58WW(1.16):bd09/17/2009:svnLENOVO:pn2842AKG:pvrThinkPadSL410:rvnLENOVO:rnINVALID:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2842AKG
  dmi.product.version: ThinkPad SL410
  dmi.sys.vendor: LENOVO

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