I too started using ndiswrapper, but still faced problems after
suspend/resume. In my case the solution was changing from wap security
to wep security. Also my connection is much faster now.

Bye,

Eduard
Op woensdag 18-11-2009 om 10:46 uur [tijdzone +0000], schreef Partha:

> This has been my experience (see above somewhere)as well. I have the
> same card. When I used Fedora 10, I usually installed a
> compat-wireless release from April 2009. However, under Ubuntu I was
> having the same problems as you with the built in driver. I finally
> gave up and use ndiswrapper. Rock solid connection and in fact
> stronger signal. I routinely get 1.5/1.6 MB/sec. The only problem on
> my computer is suspend/resume which I will tackle one of these days.
> But it not a priority for me.
> 
> 
> On Wed, Nov 18, 2009 at 2:08 AM, Iskan Der <email address hidden> wrote:
> > I've got Ubuntu 9.10 on ASUS eeePC 1005HA (it has Atheros AR9285).
> > Wi-Fi connection is very unstable under heavy load. E.g., when I copy a big file from an SMB share the connection drops after ~200-300 Mb transferred. Sometimes system is even unable to reconnect to the network after that. The same problem occurs on resume after suspend/hibernation. To bring connection back I have to reload ath9k:
> > sudo modprobe -r ath9k
> > sudo modprobe ath9k
> > I've tried installing linux-backport-modules-karmic-generic and wicd, but that does not seem to solve the problem.
> >
> > --
> > 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.
> >
>