I could reduce the problem to my own stupidity. I was using the wrong wlan-usb-device which is not capable to do wpa2 encryption. Sorry for bothering. As far as i am concerned, there is no problem.
-- [karmic] Wireless Networking broken on acer aspire one with Karmic https://bugs.launchpad.net/bugs/433721 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
