I installed a "netgear MR814 4port cable/dsl Wireless Router" few weeks ago, I connected 2desktops and 1 laptop to it. And me and the other desktop user is trying to play some games online together(games like Warcraft 3, Starcraft, I think most ppl know these games). But if one of us get on the game server then the other one can't connect in. How do I fix that? Also when I use BT(Bit Torrent) to download stuff the speed slows down.(faster when I connect my pc directly to my cable modem). I'm a new router user and I don't know how it work. I disable the firewall on it already and tried port forwarding but none helped. If anyone know my problem please help !

thanks !