I have Ubuntu 11.04 and I want to update it. However, Ubuntu does not link to my wireless router. It asks me for a password and says "password wrong". I tried to remove the password from the router with free access, but nothing changed.
The same pc with Windows links perfectly without problems, same as my cell phone and my wife's pc.
The router is a TP-link TD-W8951ND, the wireless pen is Tenda W541U I also tried to update the drivers from the Wifi-Pen I tried to install MadWifi
Any ideas that could help me?