I have a newly bought Sony Vaio VGN-NR38M and have only been able to connect to my wireless router twice (which somehow connected automatically) and both times was late at night. Whenever I try to connect it says 'windows authentification failed due to a timeout'. Recently it has sometimes been saying that my 'wireless network security key is not correct' although I don't think I've changed anything. I've done and system restore and have tried turning off my firewall. Please help me if you know anything about this. Thanks