My friend has cable internet and a 4-port Lynksys cable/dsl router. When ever 2 or more computers are hooked up to the router it works great on b.net or surfing the internet. We can play together on b.net or seperatly. But when we play together with other poeple it lags horribly. I MEAN horribly. Any suggestions? He has no firewall. (that i know of)