seems to be a problem with mixed WPA/WPA2 mode on the ath9k driver, the following work-around solves the problem:
sudo rmmod -f ath5k sudo modprobe ath5k nohwcrypt=1
see also http://ubuntuforums.org/showthread.php?t=1682388
seems to be a problem with mixed WPA/WPA2 mode on the ath9k driver, the following work-around solves the problem:
sudo rmmod -f ath5k
sudo modprobe ath5k nohwcrypt=1
see also http:// ubuntuforums. org/showthread. php?t=1682388