This problem started yesterday, and as far as I know, I haven't changed anything on my laptop to warrant it. I have an HP laptop running windows 7, about a 1 1/2 yrs old. My internet is being interrupted every 3-5 minutes, and it won't fix until I dis/reconnect or troubleshoot. This has happened both at mine and my girlfriend's house, on a Belkin and Netgear router. As far as I know, my xbox and desktop are not affected. I have tried to renew IP in cmd, but it is "unable to contact DHCP server." I tried changing my router's channel, but it didn't fix. I scanned my pc with Avast, no viruses found. This is driving me crazy.