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[Launchpad Bug Tracker <1069111@xxxxxxxxxxxxxxxxxx>]

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Hello,
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
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  luigi      2210 F.... pulseaudio
 /dev/snd/controlC0:  luigi      2210 F.... pulseaudio
 /dev/snd/controlC1:  luigi      2210 F.... pulseaudio
CRDA:
 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)
ProcFB:
 
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
RelatedPackageVersions:
 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

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: apport-collected kernel-fixed-upstream quantal running-unity
-- 
Wifi working only for brief time, needs reconnecting
https://bugs.launchpad.net/bugs/1069111
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