I am connected to my router wirelessly, when I try to ping it, it says "Destination host unreachable, and I can't do anything internet related. I've tried restarting my computer, taking the power cables out of the router and then replugging, and using the repair function. It says I'm connected at "Excellent" strength, but a little window comes up and says "Little to no connectivity" and I can't do shit. This happened recently, and I wasn't fucking with it or anything. I'm on someone elses computer on the same network, but it actually works.