What Country/State/Province do you live in? United States, Ohio
Modem brand & model number: Westell VersaLink 237w
Router brand & model number: (Modem is wireless router)
If Wireless, are you using a white or black external adapter, or an internal (Xbox 360S) adapter?
Things you have tried: Restarted everything. Tried alternate MAC address. Tried downloading profile again. Should be noted, just moved home. Live was working just fine from entirely same xbox setup. Only change is internet and subsequent ISP. Ports have been forwarded on the router. Basically everything in the support guide has been tried.