you know for example, if your router is belkin, then open up a browser and enter the ip address of the router itself which is for example 192.168.X.X, then you will enter a page where you can change everything. It will allow you to add exceptions to the router's protection system itself, in that case for example you would have to add "Warcraft III" then 6112-6119. But it depends on your router, i could host before when our router was belkin, but now weve got a different one and it won't let us do anything to it.