Rented Movie on Mac won't play on Apple TV

This is about the 4th time I have tried to play a rented movie (through iTunes on my Mac Computer) to play on my Apple TV and had problems. The last time, after quite a bit of troubleshooting, I finally got it to work. Not so today. I rented another movie tonight on my Mac and am trying to get it to play on my 3rd gen. Apple Tv. No luck. The wheel spun for 15 minutes. I unplugged everything, I did the recommended troubleshooting, no network problems, apple sharing is one, everyine is A-OK except the movie will not play through Apple TV.

This rental problem is a serious bug in Apple TV and it should be fixed. Rentals should play seamlessly and smoothly but playing doesn't work at all in some cases, and only after tons of troubleshooting in other cases. Why is this such a problem, Apple? I feel like asking for a refund not only for the movie but for the Apple TV. If I didn't hate my cable company more, I'd probably do that.

What do other people do when this happens? I have read numerous threads on this here and none of the advice works for my situation. Maybe someone else has done the secret magic trick to get it to work. Waiting to hear from the wizard.

And may I respectfully add, the Apple tech speak here that is used in trying to help people with this problem is amazing. "Istumbler and netstumbler check for interference on the network. Also check for ISP throttling" -- let me assure you Apple help, most people have no effing idea what that means. Whatever happened to Apple products being EASY to use?