My internet randomly dropped off a few days ago and can't find a solution to the problem. The internet light is red for a few seconds when you restart the router but then turns green. But there is no Wifi or internet on my PC. But my PC gets a connection, which is strange. I have talked with the internet provider and on their side they can see that internet is online in my apartment and that my computer is online too.

I have tried 3-4 routers, I have tried different cabels from the wall to the router. I have tried to connect the cable directly from the wall to the PC and in a weird way I then have the ability to access Facebook and Google. Nothing else.

Any idea what could be the problem here? Does the router block the access to the internet? Or is the WAN thing in the wall broken? 

Thanks!