Internet won't connect modem on and router on

Hello,

My modem says it is connected when ck to see where it is currently connected but I cannot connet to google or anything. I keep getting timed out and keep getting the page that says diagnose connetion or something like that. I am currently connected to someone esles unsecured network in the neighborhood.

Sometimes the modem drops out and says no connection and when it my pc says i am connected nothing seems to happen. I have unplugged the modem and plugged back in with no results. Everyone else in the neighborhood has internet except me.