My problem seems to be fixed with a more recent kernel (3.12), it seems i ran into this bug: https://bugs.launchpad.net/ubuntu/+sour ... ug/1160188

Are there any news on this topic? I have the same hardware and apparently the same problems at our university network. I was using windows on this machine before and didn't experience this behavior. A hint on how to disable wireless at n-speed on ath9k would be great. Is there a way to talk wpa ...

I had the same problem, because i used the old cupsd.conf file, and zapped the new one using dispatch-conf yesterday evening (i was tired )
It works with the new one

I am using an AMD64, are there any issues with this and w32codecs?

I think using the win32codecs with a 64bit mplayer is not possible.
Try media-video/mplayer-bin