No I left the stinking cesspit that is the asshole of the world for a better, happier place. Plus Im european so technically this is my motherland.
Have you tried returning it (the new one) and seeing if that works?
Well I tried my brothers one, which did the same thing.
Still, how can 2 Xboxes in a row have network issues?
Also, its receiving info from the router so like the dude from MS said, its probably not the network card.