Well, I've read through quite a few posts and tried most of the suggestions and nothing seems to work. I'm having winXP operating system and a Netgear wireless N 300 router with DSL modem. since last two ,I lost internet connection with my desktop. After checking all connections and the router, I tried connecting wirelessly with my laptop...worked fine. I disconnected the ethernet cable from the desktop and the laptop connected via the cable with no problems. So I figured it was the port. After installing a new ethernet port, it worked...for 12 hours. Then the same problem cropped up again. I've tried repairing the internet connection and get the "cannot renew IP address". Any thoughts?