Xbox live cannot connect to network

HI there! if ur other wireless devices can connect to the wireless network without any problem, pls check ur wireless settings on the xbox or it needs to upgrade the wireless driver of ur xbox.. then unplug the power of the router and plug in after 15secs..after ur done on the upgrade of the wireless driver of ur xbox, i dont see any problem on the router bcoz the other wireless device can connect to wireless network..

I would suggest power cycling it, both the xbox and the router, sometimes routers can be funny with there connections.