I recently bought a 250GB new Xbox 360 (new model) and connected to live just fine. Though it randomly disconnects me somewhere between an hour - four hours of being logged in, and when i try to re-log in, it tells me it can't and i should do a internet connection test, so i do. The test shows it can't connect to my internet, but if i restart the Xbox 360, the internet is fine and no errors come up.
I know it's not my internet since there's no problems with the PS3, computer's or laptop's being used in the house over, well, all year round.. Just the 360 decides to disconnect and won't allow me to re-log in until i've restarted the 360.
My NAT type is open.
UPNP is enabled.
No firewalls that i know of preventing the 360 from accessing Xbox live.
Any suggestions? It's becoming a pain when i get kicked off from playing Halo reach online, then having to wait 10 minutes for being banned from quiting games, when actually i was kicked off.
Any responses are much appreciated!