San Jose, CA
·Pacific Bell - SBC
Since I don't known how your equipment is hooked up, I'll have to offer a SWAG ("Scientific Wild Assed Guess"). You have a router performing NAT between your modem, and your XBox; and your modem is not bridged. Bridge it.
Better, tell us how your equipment is connected, and what models of equipment you have.
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum