Sometimes it is a little difficult to make the WLAN settings, as your card has to be properly integrated in your home network (where you may have securtiy settings). So you do not want to loose connection during the setup and later end up with your card not found in your network because your router would not accept it.
Please find my tutorial as I did it step by step
PDF (in german/english) download from my homepage
Let me know if you find additional steps who are not covered in the tutorial.