After an update on Ubuntu 12.04 LTS I've lost internet access although I can see the WiFi connection.
I've tried all the solutions I could find on Google and on this forum, but nothing worked. I know that a lot of people had had trouble with ath9k drivers, but I cant find a solution. I tried to find a way to reset Ubuntu as when I first installed it, but there isn't. I thought there could be a solution.
Any ideas?