My computer is connected threw a modem/router on another computer. My computer was connected online and worked for a while, and then it stopped letting me get online. Yet the computer that has the modem and router connected it, DOES go online. It happened before, and i called my provider, they walked me threw it and i got back online. So i tried calling them back, and they gave me some other info to help me get online... some info that didnt help at all. Any ideas on how to fix it?