KNetworkManager troubles - no wireless conection


I am having trouble with KNetworkManager establishing wireless connections.

After DL 43xx firmware I get to see the available wireless networks, after clicking on my network KNetworkManager then asks about the password for my network, I enter it and then nothing happens for a while and then it asks me again for the password and then the whole process is repeated over and over again with no connection ever established.

What is wrong?

There are some known issues with KNetworkManager. Have a look at this tread: Nach Installation von OS 11.2 kein netzwerk - openSUSE Forums. Unfortunately is is partly in german, but it shows what could be wrong.