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[Bug 1069111] Re: Wifi working only for brief time, needs reconnecting


Luigi Pezzotta, thank you for reporting this bug to Ubuntu. Quantal reached EOL on May 16, 2014.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Is this an issue in a supported release? If so, could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1069111

** Package changed: ubuntu => linux (Ubuntu)

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

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  Wifi working only for brief time, needs reconnecting

Status in “linux” package in Ubuntu:

Bug description:
  I recently upgraded to Ubuntu 12.10 (64bit) and I've run into a problem with the wireless connection. It connects as normal but after a brief time (1 minute at max) it looks like I'm not connected any more. Pages in Chromium stop loading, Dropbox stops syncing, Empathy tells me I need to reconnect, and apparently I need to re-authorize Google online accounts (but the appropriate page fails to load if I try).

  The system doesn't report any errors, however. It tells me that I'm
  still connected with normal signal.

  If I try reconnect to the same network, the symptoms disappear (I can
  load pages, reconnect to Empathy and so on) but after a very brief
  time they reappear as before.

  Everything works fine on other devices connected to the same network,
  and I could use the internet normally when I had Ubuntu 12.04
  installed on the same computer showing the error.

  This bug is very similar to the one reported by Carnalbeast in comment #16 on the following bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/997774
  The only difference is time (I can use the internet for about a minute at most). I could not find a bug report about it, however.

  I discovered similarities with Bug #997774 as well:
  - disabling ipv6 seems to work
  - kernel v3.2.17 (suggested there) works perfectly, even with ipv6 enabled; I've not yet tried other kernels

  However, bug #997774 has been solved by updating the default kernel, while my problem has not. Also, as I understand it, in bug #997774 the system actually disconnected, while in my case everything is apparently working until I try to use an online application.
  ApportVersion: 2.6.1-0ubuntu4
  Architecture: amd64
   /dev/snd/controlC2:  luigi      2210 F.... pulseaudio
   /dev/snd/controlC0:  luigi      2210 F.... pulseaudio
   /dev/snd/controlC1:  luigi      2210 F.... pulseaudio
   country GB:
   	(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
  DistroRelease: Ubuntu 12.10
  HibernationDevice: RESUME=UUID=2f1178cb-65b7-4f53-bddb-ddf4575dc2fe
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110921.2)
  MachineType: MEDIONPC MS-7707
  MarkForUpload: True
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=8b6a455e-f93f-4051-873f-0d755c268a52 ro quiet splash
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
   linux-restricted-modules-3.5.0-17-generic N/A
   linux-backports-modules-3.5.0-17-generic  N/A
   linux-firmware                            1.95
  Tags:  quantal running-unity
  Uname: Linux 3.5.0-17-generic x86_64
  UpgradeStatus: Upgraded to quantal on 2012-10-18 (1 days ago)
  UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare
  dmi.bios.date: 04/01/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: E7707MLN.10E
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: MS-7707
  dmi.board.vendor: MEDIONPC
  dmi.board.version: 1.1
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MEDIONPC
  dmi.chassis.version: 1.1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE7707MLN.10E:bd04/01/2011:svnMEDIONPC:pnMS-7707:pvr1.1:rvnMEDIONPC:rnMS-7707:rvr1.1:cvnMEDIONPC:ct3:cvr1.1:
  dmi.product.name: MS-7707
  dmi.product.version: 1.1
  dmi.sys.vendor: MEDIONPC

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