I've had a lot of success with questions on this site so I thought I would ask this one. My internet works fine most of the time. I have one computer that has a modem and router hooked up to it for internet. I also have another computer that is wireless in the next room over, and an xbox that can go wireless or wired (mostly wired). The wireless computer can always be connected, but the the other computer (with the modem and router) has to be disconnected if I want to play xbox online. If I don't disconnect it, I will lag all over the place while trying to play some Call Of Duty on xbox. Yet the wireless computer doesn't affect it what-so-ever. Does anyone have any ideas on how to fix this or why it is happening? Thanks.