I have a similar problem, it happened me when I updated from Jaunty to Karmic Alpha 6. The point is that if i boot with the live cd the wifi works perfectly. Therefore the problem is related with the upgrade :( I'm waiting for the bug fix.
I have a similar problem, it happened me when I updated from Jaunty to Karmic Alpha 6. The point is that if i boot with the live cd the wifi works perfectly. Therefore the problem is related with the upgrade :( I'm waiting for the bug fix.