With ATV, I can't access my ITunes account.

So, I have an Apple TV, I can get onto Netflix, YouTube, Flickr, etc, but any time I try to access ITunes, it gives the waiting circle in the center and then goes back to the main screen. None of my other devices (IPhone, IPad, Macbook Pro) are having trouble with my wi-fi, so I am pretty sure that is not the problem. I have restarted my Apple TV multiple times and that has not fixed the problem. I have been able to access my ITunes account via all of my Mac products, just not ATV. If I sign out of my ITunes account, I can get onto ITunes, watch previews, see what is available, etc, but when I go to rent/buy and I sign in, it just says ITunes unable to connect to the internet. Can anyone give me any suggestions? ANYTHING would be appreciated!