Ok so earlier today I was spending some time home at a friend when suddenly my browser stopped working, it was like the internet died but MSN and other internet required programs like Spotify and Voddler continued to work, so I just thought it was his internet at his place that were playing tricks on me, but when I came home for around 5 hours ago the problem is still there, surfing the internet works like 10-20 minutes after I have started the laptop but after that it just dies.
I've tried 3 different browsers(FF, Chrome, IE) and the same shit still occur. Scanning for virus havent helped a bit either.
I've searched google for help and I've tried everything I have found and it still doesnt work. It doesnt happen on my other computer, just on my beloved

laptop
Anyone who knows what the problem may be? Dis shit drivin' me f
uckin' crazy man.