I can confirm this. I turned off power management and the disconnects
are less frequent, though have not downloaded anything massive
recently. Now you have to unload and reload ath9k to get your
connection back.

As I have said before, I used a get a great connection with the
version of ath9k driver from April/May 2009 time frame.


On Wed, Oct 28, 2009 at 11:36 PM, Jason Toffaletti
<email address hidden> wrote:
> Still seeing this with:
> ii  linux-image-2.6.31-14-generic             2.6.31-14.48
> ii  linux-backports-modules-karmic            2.6.31.14.27
>
> It is less frequent, but I'm still getting disconnects and not able to
> reconnect until I rmmod ath9k. Sometimes it takes a full reboot.
>
> --
> ath9k disassociates/reassociates a lot
> https://bugs.launchpad.net/bugs/414560
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Linux Kernel: Confirmed
> Status in “linux” package in Ubuntu: Triaged
>
> Bug description:
> I cannot find any rhyme or reason to this, but my
>
> 01:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)
>
> seems to like to disassociate/reassociate a lot since I started testing karmic as of alpha 4.
>
> A typical dmesg excerpt:
>
> [ 1881.988111] wlan0: no probe response from AP 00:15:e9:13:47:60 - disassociating
> [ 1883.367859] wlan0: authenticate with AP 00:15:e9:13:47:60
> [ 1883.370161] wlan0: authenticated
> [ 1883.370181] wlan0: associate with AP 00:15:e9:13:47:60
> [ 1883.372802] wlan0: RX ReassocResp from 00:15:e9:13:47:60 (capab=0x431 status=0 aid=1)
> [ 1883.372822] wlan0: associated
> [ 1892.008117] wlan0: no probe response from AP 00:15:e9:13:47:60 - disassociating
> [ 1893.385338] wlan0: authenticate with AP 00:15:e9:13:47:60
> [ 1893.385521] wlan0: authenticate with AP 00:15:e9:13:47:60
> [ 1893.388175] wlan0: authenticated
> [ 1893.388196] wlan0: associate with AP 00:15:e9:13:47:60
> [ 1893.391563] wlan0: RX ReassocResp from 00:15:e9:13:47:60 (capab=0x431 status=0 aid=1)
> [ 1893.391585] wlan0: associated
> [ 1926.988135] wlan0: no probe response from AP 00:15:e9:13:47:60 - disassociating
> [ 1928.365306] wlan0: authenticate with AP 00:15:e9:13:47:60
> [ 1928.367426] wlan0: authenticated
> [ 1928.367442] wlan0: associate with AP 00:15:e9:13:47:60
> [ 1928.370948] wlan0: RX ReassocResp from 00:15:e9:13:47:60 (capab=0x431 status=0 aid=1)
> [ 1928.370969] wlan0: associated
> [ 1966.988114] wlan0: no probe response from AP 00:15:e9:13:47:60 - disassociating
> [ 1968.366568] wlan0: authenticate with AP 00:15:e9:13:47:60
> [ 1968.368624] wlan0: authenticated
> [ 1968.368643] wlan0: associate with AP 00:15:e9:13:47:60
> [ 1968.371872] wlan0: RX ReassocResp from 00:15:e9:13:47:60 (capab=0x431 status=0 aid=1)
> [ 1968.371893] wlan0: associated
>
> Performance drops significantly when this starts going on.  At times it becomes impossible to look up hosts, etc.  Other times, it will run fine for hours on end.
>
> ProblemType: Bug
> AplayDevices:
>  **** List of PLAYBACK Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> Architecture: i386
> ArecordDevices:
>  **** List of CAPTURE Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> AudioDevicesInUse:
>  USER        PID ACCESS COMMAND
>  /dev/snd/controlC0:  matt       3290 F.... pulseaudio
> CRDA: Error: [Errno 2] No such file or directory
> Card0.Amixer.info:
>  Card hw:0 'Intel'/'HDA Intel at 0xf7eb8000 irq 16'
>   Mixer name   : 'Realtek ALC269'
>   Components   : 'HDA:10ec0269,1043834a,00100004'
>   Controls      : 12
>   Simple ctrls  : 7
> Date: Sun Aug 16 17:15:46 2009
> DistroRelease: Ubuntu 9.10
> MachineType: ASUSTeK Computer INC. 1000HE
> Package: linux-image-2.6.31-5-generic 2.6.31-5.24
> ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-5-generic root=UUID=564b6024-8d7a-4d50-8410-563167a8756a ro quiet splash
> ProcEnviron:
>  PATH=(custom, no user)
>  LANG=en_US.UTF-8
>  SHELL=/bin/bash
> ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
> RelatedPackageVersions:
>  linux-backports-modules-2.6.31-5-generic N/A
>  linux-firmware 1.15
> SourcePackage: linux
> Tags:  ubuntu-unr
> Uname: Linux 2.6.31-5-generic i686
> dmi.bios.date: 07/23/2009
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: 1002
> dmi.board.asset.tag: To Be Filled By O.E.M.
> dmi.board.name: 1000HE
> dmi.board.vendor: ASUSTeK Computer INC.
> dmi.board.version: x.xx
> dmi.chassis.asset.tag: 0x00000000
> dmi.chassis.type: 10
> dmi.chassis.vendor: ASUSTek Computer INC.
> dmi.chassis.version: x.x
> dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1002:bd07/23/2009:svnASUSTeKComputerINC.:pn1000HE:pvrx.x:rvnASUSTeKComputerINC.:rn1000HE:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
> dmi.product.name: 1000HE
> dmi.product.version: x.x
> dmi.sys.vendor: ASUSTeK Computer INC.
>