My girlfriend has had a laptop about 2 and a half months and it has worked fine. Yesterday she was unable to access wireless out of the blue. I ran the Diagnose and it say's cannot fix the problem. I pulled up the network connections screen and watched as it tried to connect to a network and it would get stuck at Authenticating Network IP or something like that. It finds our network, but fails to connect. This morning it was working fine after she plugged the ethernet cord into the router and when she unplugged it the wireless continued to work up until about half an hour ago, and then the problem came back. Not sure if the ethernet cable fix was a fluke or if that actually helped, but has this happened to anyone else?