Comment 142 for bug 414560

I'm sorry if I'm crossposting with Bug #333730, but in case it might be useful to others, here's my experience with ath9k module/Atheros AR928X card, including a some workarounds I've found along the road:

1. Like other reporters have mentioned, the ath9k drivers provided out of the box by Jaunty and Karmic give really unstable and weak connections. In my case, installing the linux-backports-wireless-modules-karmic (jaunty) improves things dramatically (it gives me a quite stable and strong connection), while there are still some deassociate/reassociate issues reported here (see point 2 for the workaround for these issues).

2. I think I have managed to somewhat circumvent these issues (especially for streaming audio to a Soundbridge M1001 with Firefly Media Server), by opting for one or the other following solutions:

a) like others have reported, using wicd instead of network-manager seems to solve the problem, at least in my case for the purpose of audio streaming.

b) keeping network-manager, but using ndiswrapper (instead of ath9k module) with a Windows XP driver for the AR928X card is my preferred choice. See these sites to find the right XP drivers:

http://forums.laptopvideo2go.com/topic/15297-latest-atheros-modded-driver-for-windws-7-vista-and-winxp/ (These ones work perfectly for me; look for v.7.7.0.259 or the atheros_v7.7.0.259_v1.26.exe file)

http://www.atheros.cz/ (these ones work well, but without the blue led functionality...)

Hope this helps.