The only problems i have had is i am un able to access the private beta forums for it. i called support about it and they said its been a very common problem.
lucky? it practically broke my xbox atm and it broke the part i need to use the freaken beta.... i called xbox support and they are ofc no help so guess i have to wait for a patch or just use this xbox for other purposes. oh and they said they closed the beta about a week ago and i got in yesterday so if you sign up and get in this late down download it cause it will apparently make you lose xbox live.... nevermind found the link but have to signup and are they serious 5 business days for the forums but if its as fast as getting into the beta for me thats no problem, but note to all signup for the forums as well.
The problem was my Trendnet router because as soon as i connected it to my DIR-615 it connected no problem so if you have this problem find another router and see if it works im downloading an update will see if the update fixes my problem or if i have to stay connected to my other router.