I just installed 12.04 on my desktop computer, and everything is great, but I can't connect to my home WiFi.
Ethernet cable is working fine, but the wireless recognizes the WiFi, but can't connect. I somehow managed to connect to my home network with no Internet for a few seconds, but I don't know how. I was playing with the settings at the time.
Using a Vigor510 Netcard if it helps anyone.