This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
Just log into your 4500 & set the DMZ for the XBOX network, & make sure the xbox IP is correct. I use this router 4 all my gaming & as a network Admin & computer company owner i can tell U this is a great router. One of the best home class routers on the market. Cant beat D-Link, just take some time to learn about the routers options and basic networking.
The 4500 cannot maintain a stable connection over wired or wireless, until this is fix halo 3 will always lag using this router.