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- First you should try logging out of your iTunes Store account (settings > iTunes Store > accounts) and then back in again.
- Also check that your location, region and time zone are set correctly, you can only purchase or play content from the store in your location.
- If that doesn't help, try resetting the Apple TV (Settings > General > Reset > Reset all settings). You should also try restarting your router.
- If both of the above don't help, you should try a restore (Settings > General > Reset > Restore).
Winston, i can not purchase movies/ musics and play my purchased movies too.
I have contacted apple care and for the moment, there is no solution. Apple care sent my request to developpment team and i am waiting.
Apple care assistance tried to find the solution : configuration of new dns on my box, reboot, check itunes client etc....