Man Belkin routers are the biggest peices of **** ever
i recently bought one for my grandparents [i would never buy Belkin myself, i own a Linksys WRT-300N] and attempted to set it up
that thing has SUCH problems with port forwarding and allowing connections through it's rediculous, unless u can find a quick solution i'd buy the network adapter [and even then it might not work :S]
OK, well I have a Belkin router and everything works online, Fifa, Mario Strikers, messaging and all the channels except the internet channel, it does however have a slight delay when accessing them and online isn't really perfect but good enough.