The server address may be 192.168.0.1 instead of 192.168.1.1 Go to
http://192.168.0.1/ and see if it works.
There should be a tiny button the router itself somewhere that is large enough for a pin or the end of a ballpoint pen. If you press that button (make sure to read your router's instruction manual for additional or required steps with this process!), the router should reset itself to its factory settings.