Wireless network connection drops out or bounces

My wireless connection has taken to bouncing. It was fine (except that I was turning off power management each time I started up to solve a similar problem) and there weren't any updates done to trigger the issue. Oddly it has been quite stable now for nearly 2 hours.

I'm running Ubuntu 10.04 on an Acer Aspire 5742. Below is output from commands asked for in Wireless Troubleshooting procedure:

[28556.216011] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28556.218056] wlan0: authenticated
[28556.218086] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28556.222185] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28556.222190] wlan0: associated
[28566.301343] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28566.533064] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28566.732624] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28566.737799] wlan0: direct probe responded
[28566.737804] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28566.740751] wlan0: authenticated
[28566.740775] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28566.744819] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28566.744825] wlan0: associated
[28577.851549] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28578.086377] ath9k: Two wiphys trying to scan at the same time
[28578.086497] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28578.285470] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28578.290643] wlan0: direct probe responded
[28578.290648] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28578.292710] wlan0: authenticated
[28578.292741] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28578.296846] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28578.296850] wlan0: associated
[28589.553142] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28589.756492] ath9k: Two wiphys trying to scan at the same time
[28589.756615] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28589.959118] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28589.964291] wlan0: direct probe responded
[28589.964296] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28589.966278] wlan0: authenticated
[28589.966304] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28589.970428] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28589.970432] wlan0: associated
[28601.106329] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28601.337950] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28601.537669] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28601.542891] wlan0: direct probe responded
[28601.542897] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28601.544891] wlan0: authenticated
[28601.544917] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28601.548945] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28601.548951] wlan0: associated
[28605.384270] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28605.589256] ath9k: Two wiphys trying to scan at the same time
[28605.589379] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28605.790645] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28605.795800] wlan0: direct probe responded
[28605.795807] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28605.797797] wlan0: authenticated
[28605.797825] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28605.801843] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28605.801845] wlan0: associated
[28615.873614] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28616.069093] ath9k: Two wiphys trying to scan at the same time
[28616.268144] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28616.468694] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28616.473775] wlan0: direct probe responded
[28616.473781] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28616.475782] wlan0: authenticated
[28616.475808] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28616.479855] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28616.479861] wlan0: associated
[28627.011333] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28627.246636] ath9k: Two wiphys trying to scan at the same time
[28627.246698] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28627.445760] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28627.450941] wlan0: direct probe responded
[28627.450945] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28627.453006] wlan0: authenticated
[28627.453038] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28627.457083] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28627.457089] wlan0: associated
[28638.037574] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28638.272730] ath9k: Two wiphys trying to scan at the same time
[28638.272955] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28638.471763] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28638.476906] wlan0: direct probe responded
[28638.476912] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28638.478959] wlan0: authenticated
[28638.478995] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28638.483122] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28638.483128] wlan0: associated
[28642.363207] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28642.566596] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28642.767104] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28642.772172] wlan0: direct probe responded
[28642.772177] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28642.774160] wlan0: authenticated
[28642.774181] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28642.778215] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28642.778222] wlan0: associated
[28645.393810] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28645.524352] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28645.743330] ADDRCONF(NETDEV_UP): eth0: link is not ready
[28645.743784] tg3: eth0: Link is down.
[28650.194027] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28651.198060] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28651.198122] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28651.203543] wlan0: direct probe responded
[28651.203550] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28651.205762] wlan0: authenticated
[28651.205812] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28651.209851] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28651.209858] wlan0: associated
[28651.221788] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[28651.570167] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28651.697111] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28651.831431] ADDRCONF(NETDEV_UP): eth0: link is not ready
[28652.084844] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28652.738847] tg3: eth0: Link is down.
[28654.178404] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28654.183064] wlan0: direct probe responded
[28654.183073] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28654.185272] wlan0: authenticated
[28654.185308] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28654.189217] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28654.189224] wlan0: associated
[28654.201355] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[28664.243004] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28664.411450] ath9k: Failed to stop TX DMA in 100 msec after killing last frame
[28664.411480] ath9k: Unable to stop TxDMA. Reset HAL!
[28664.486894] ath9k: Two wiphys trying to scan at the same time
[28664.658741] wlan0: no IPv6 routers present
[28664.689631] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28664.889361] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28664.894518] wlan0: direct probe responded
[28664.894525] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28664.896568] wlan0: authenticated
[28664.896591] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28664.900621] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28664.900626] wlan0: associated
[28674.945425] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28675.184581] ath9k: Two wiphys trying to scan at the same time
[28675.184734] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28675.384094] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28675.389198] wlan0: direct probe responded
[28675.389204] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28675.391192] wlan0: authenticated
[28675.391219] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28675.395256] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28675.395262] wlan0: associated
[28686.051113] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28686.286610] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28686.486562] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28686.491728] wlan0: direct probe responded
[28686.491734] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28686.493721] wlan0: authenticated
[28686.493748] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28686.497777] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28686.497783] wlan0: associated
[28696.981106] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28697.212543] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28697.412899] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28697.418115] wlan0: direct probe responded
[28697.418122] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28697.420187] wlan0: authenticated
[28697.420219] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28697.424324] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28697.424328] wlan0: associated
[28708.039482] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28708.278868] ath9k: Two wiphys trying to scan at the same time
[28708.278958] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28708.310603] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28708.422712] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28708.422823] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28708.436378] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28708.436493] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28708.585252] ADDRCONF(NETDEV_UP): eth0: link is not ready
[28708.708934] tg3: eth0: Link is down.
[28713.161091] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28713.161188] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28713.165813] wlan0: direct probe responded
[28713.165820] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28713.168098] wlan0: authenticated
[28713.168134] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28713.172050] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28713.172056] wlan0: associated
[28713.184120] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[28718.750911] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28718.878167] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28719.009133] ADDRCONF(NETDEV_UP): eth0: link is not ready
[28719.249746] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28719.703684] tg3: eth0: Link is down.
[28721.379151] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28721.383748] wlan0: direct probe responded
[28721.383755] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28721.386014] wlan0: authenticated
[28721.386055] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28721.386549] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28721.386606] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28721.395467] wlan0: direct probe responded
[28721.395472] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28721.397478] wlan0: authenticated
[28721.397509] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28721.401366] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28721.401372] wlan0: associated
[28721.413474] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[28723.312666] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28723.448664] ath9k: Failed to stop TX DMA in 100 msec after killing last frame
[28723.448697] ath9k: Unable to stop TxDMA. Reset HAL!
[28723.535749] ath9k: Two wiphys trying to scan at the same time
[28723.535818] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28723.734723] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28723.739916] wlan0: direct probe responded
[28723.739921] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28723.741966] wlan0: authenticated
[28723.741989] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28723.746104] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28723.746110] wlan0: associated
[28732.347979] wlan0: no IPv6 routers present
[28733.822362] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28734.042644] ath9k: Two wiphys trying to scan at the same time
[28734.042684] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28734.244854] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28734.250060] wlan0: direct probe responded
[28734.250067] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28734.252055] wlan0: authenticated
[28734.252084] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28734.256127] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28734.256133] wlan0: associated
[28745.024310] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28745.255907] ath9k: Two wiphys trying to scan at the same time
[28745.255945] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28745.274463] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28745.375897] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28745.375939] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28745.400540] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28745.400592] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28745.400607] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28745.549694] ADDRCONF(NETDEV_UP): eth0: link is not ready
[28745.689484] tg3: eth0: Link is down.
[28750.144630] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[28750.333998] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28750.334050] wlan0: deauthenticating from c0:c1:c0:49:55:9c by local choice (reason=3)
[28750.345392] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[28750.351833] wlan0: direct probe responded
[28750.351839] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[28750.353820] wlan0: authenticated
[28750.353857] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[28750.357886] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[28750.357894] wlan0: associated
[28750.370016] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[28760.538956] wlan0: no IPv6 routers present
[42088.951522] wlan0: deauthenticated from c0:c1:c0:49:55:9c (Reason: 7)
[42090.090850] wlan0: direct probe to AP c0:c1:c0:49:55:9c (try 1)
[42090.096084] wlan0: direct probe responded
[42090.096088] wlan0: authenticate with AP c0:c1:c0:49:55:9c (try 1)
[42090.098099] wlan0: authenticated
[42090.098129] wlan0: associate with AP c0:c1:c0:49:55:9c (try 1)
[42090.102198] wlan0: RX AssocResp from c0:c1:c0:49:55:9c (capab=0x411 status=0 aid=3)
[42090.102206] wlan0: associated
 Release Date: 01/21/2011
 Manufacturer: Acer
 Product Name: Aspire 5742
 Serial Number: LXR4F02356107188BA1601
 Manufacturer: Acer
 Product Name: Aspire 5742
 Serial Number: Base Board Serial Number
 Manufacturer: Acer
 Serial Number: Chassis Serial Number
 Manufacturer: -Virtual Battery 0-
 Manufacture Date: 10/12/2007
 Serial Number: Battery 0
 Manufacturer: OEM_Define2
 Serial Number: OEM_Define3
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Manufacturer: Not Specified
 Serial Number: 43A54E05
 Manufacturer: Intel(R) Corporation
 Serial Number: Not Specified
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"Eastnier"
          Mode:Managed Frequency:2.462 GHz Access Point: C0:C1:C0:49:55:9C
          Bit Rate=195 Mb/s Tx-Power=20 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:on
          Link Quality=30/70 Signal level=-80 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
options ath9k nohwcrypt=1
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
21: PCI 100.0: 0200 Ethernet controller
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_14e4_1692
  Unique ID: rBUF.Ngkfq3qvUy8
  Parent ID: z8Q3.iw_YgxfLCA4
  SysFS ID: /devices/pci0000:00/0000:00:1c.0/0000:01:00.0
  SysFS BusID: 0000:01:00.0
  Hardware Class: network
  Model: "Broadcom Ethernet controller"
  Vendor: pci 0x14e4 "Broadcom"
  Device: pci 0x1692
  SubVendor: pci 0x1025 "Acer Incorporated [ALI]"
  SubDevice: pci 0x0487
  Revision: 0x01
  Driver: "tg3"
  Driver Modules: "tg3"
  Device File: eth0
  Memory Range: 0xb3400000-0xb340ffff (rw,non-prefetchable)
  IRQ: 28 (3 events)
  HW Address: 1c:75:08:c9:83:70
  Link detected: no
  Module Alias: "pci:v000014E4d00001692sv00001025sd00000487bc02sc00i00"
  Driver Info #0:
    Driver Status: tg3 is active
    Driver Activation Cmd: "modprobe tg3"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #13 (PCI bridge)

22: PCI 200.0: 0282 WLAN controller
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_168c_2e
  Unique ID: y9sn.eunzQs34F3D
  Parent ID: qTvu.klt2e4vlFx4
  SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:02:00.0
  SysFS BusID: 0000:02:00.0
  Hardware Class: network
  Model: "Atheros WLAN controller"
  Vendor: pci 0x168c "Atheros Communications Inc."
  Device: pci 0x002e
  SubVendor: pci 0x105b "Foxconn International, Inc."
  SubDevice: pci 0xe034
  Revision: 0x01
  Driver: "ath9k"
  Driver Modules: "ath9k"
  Device File: wlan0
  Features: WLAN
  Memory Range: 0xb2400000-0xb240ffff (rw,non-prefetchable)
  IRQ: 17 (1769718 events)
  HW Address: 90:00:4e:26:31:be
  Link detected: yes
  WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13
  WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "pci:v0000168Cd0000002Esv0000105Bsd0000E034bc02sc80i00"
  Driver Info #0:
    Driver Status: ath9k is active
    Driver Activation Cmd: "modprobe ath9k"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #14 (PCI bridge)
Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
root 926 0.0 0.1 19004 4140 ? Ssl 10:22 0:07 NetworkManager
root 1018 0.0 0.0 4836 2388 ? S 10:22 0:07 /sbin/wpa_supplicant -u -s
root 1131 0.2 0.1 25360 6872 ? S 10:22 1:53 /usr/bin/python -O /usr/share/wicd/daemon/wicd-daemon.py
root 1240 0.0 0.1 12920 7240 ? S 10:22 0:40 /usr/bin/python -O /usr/share/wicd/daemon/monitor.py
simon 1758 0.0 0.5 35024 19156 ? S 10:22 0:24 /usr/bin/python -O /usr/share/wicd/gtk/wicd-client.py
simon 5259 0.0 0.0 3320 876 pts/2 S+ 22:36 0:00 egrep --color=auto wpa|icd|etwork
root 27635 0.0 0.0 2232 1004 ? S 18:21 0:00 /sbin/dhclient -d -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /var/run/dhclient-wlan0.pid -lf /var/lib/dhcp3/dhclient-08e5c030-18a0-41ef-8f44-891be4922da1-wlan0.lease -cf /var/run/nm-dhclient-wlan0.conf wlan0
Module Size Used by
usbhid 36206 0
hid 67288 1 usbhid
aes_i586 7268 1
aes_generic 26863 1 aes_i586
binfmt_misc 6587 1
ppdev 5259 0
joydev 8740 0
snd_hda_codec_intelhdmi 11622 1
snd_hda_codec_realtek 203472 1
snd_hda_intel 22165 2
snd_hda_codec 74297 3 snd_hda_codec_intelhdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 5412 1 snd_hda_codec
fbcon 35102 71
tileblit 1999 1 fbcon
font 7557 1 fbcon
bitblit 4707 1 fbcon
snd_pcm_oss 35308 0
softcursor 1189 1 bitblit
snd_mixer_oss 13746 1 snd_pcm_oss
vga16fb 11385 0
snd_pcm 70918 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
vgastate 8961 1 vga16fb
snd_seq_dummy 1338 0
snd_seq_oss 26722 0
snd_seq_midi 4557 0
arc4 1153 2
snd_rawmidi 19056 1 snd_seq_midi
snd_seq_midi_event 6003 2 snd_seq_oss,snd_seq_midi
snd_seq 47263 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
ath9k 306398 0
i915 290852 3
snd_timer 19130 2 snd_pcm,snd_seq
drm_kms_helper 29329 1 i915
mac80211 205434 1 ath9k
snd_seq_device 5700 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
drm 164436 4 i915,drm_kms_helper
snd 54244 17 snd_hda_codec_intelhdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
ath 7611 1 ath9k
uvcvideo 57470 0
videodev 34457 1 uvcvideo
i2c_algo_bit 5028 1 i915
video 17375 1 i915
soundcore 6620 1 snd
cfg80211 126528 3 ath9k,mac80211,ath
output 1871 1 video
v4l1_compat 13251 2 uvcvideo,videodev
psmouse 63677 0
snd_page_alloc 7172 2 snd_hda_intel,snd_pcm
serio_raw 3978 0
intel_agp 24671 2 i915
agpgart 31788 2 drm,intel_agp
led_class 2864 1 ath9k
lp 7028 0
parport 32635 2 ppdev,lp
usb_storage 40065 0
tg3 109580 0
ahci 32712 2
simon@simon-Acer5742:~$

All help gratefully received.