you need to open port 6112 for Warcraft. if you don't know how, go to: http://portforward.com/english/routers/por...routerindex.htm choose your router and game (warcraft3)
did you enter your default gateway ip? if you dont know it run a command and type ipconfig hit enter and youll see your default gateway addreas should be somefin like 192.186.X.X
So, you double clicked your connection thing, saw the "default gateway", typed it into the address bar. Then a screen appeared with configuration of your router with its brand name somewhere? Take a screenshot for me.