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Eric Forman said:
How do you configure your internet to host an mp game.
The only thing that can prevent you from hosting a game is:
1.) Slow internet connection (modem is not recomended :D )
2.) Firewall
3.) Router

When i host i disable my firewall during the time i play. This is the easy way to go. If you also have a router then everything suddenly got alot more complex, because you need to configure alot manualy normaly.