My computer was working just fine connecting to the Internet and then one day I turned it on and it had no connection at all. The diagnosis told me my Ethernet cable was either not plugged in or busted, but neither was the case because I had the same issue with 2 other cables. After about an hour of reading forums and fussing with it I gave up and went to work. When I got back that night it worked. I had no idea why but I wasn't going to argue, but the next day the problem returned. I quickly gave up trying to fix it but sure enough, that night around 11 I got on and it was working just fine. This pattern has repeated 5 days running now and I am thoroughly baffled. No amount of resets and unpluggings, driver installations and CMOS resets can fix it during the day, but it works flawlessly at night... ???????????