[chibo]

Dude, as Busted and I said you're going to need to get into your routers config and adjust the QoS to give the xbox bandwidth priority or install a program on your computer to limit your down/upstream to avoid saturating the connection. No consumer router will fix your problem out of the box. I suggest you use a program to do it, it's easier and will work. Netlimiter will do what you want, check it out - it's free for a month.