[ubuntu] wlan does not connect (ubuntu/network-manager bug?)

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http://ubuntuforums.org – hi there. so far i testet 4 wlan cards (prism, ?zytel?, realtek and another realtek) they all work without a problem with kubuntu. but with ubuntu they dont want to build up a connection to my router... it looks like the passphrase is wrong..he asks me after a short time to reenter the phrase. but the phrase isnt wrong(copy pasted) the phrase has some special characters but only '=' and a few '!'. so i doubt that that could be the problem im pretty sure there are more people out there who have the same problem. I hope someone knows a solution :/ edit: i did some searching and found this... seems to be a major problem https://bugs.launchpad.net/ubuntu/+s...er/+bug/379219 (HowTos)