Apple TV slow downloading, slow authorizing then says iTunes unavailable

I have two Apple TV boxes in the same house and on the same network connection. One works GREAT, the other one has started having issues in the last several days. I choose a tv show or movie and it says downloading ( usually takes several minutes) then it goes to authorizing and never completes the screen defaults to iTunes unavailable - try again later. Any suggestions? I have reset, reboot, and unplugged.