Hi MacRumors Forums! First I want to start of by saying that my set up has been solid for years! I've owned 2nd-gen appleTV and swapped it out last year for the latest. I host my iTunes movie library on my media mac in the same room as the apple tv and home theater. Both the appleTV and media mac has been wireless using the latest-gen TimeCapsule. Then the appleTV automatically updates to tvOS 10 and suddenly I can't watch the movie I was just watching yesterday! I get the dreaded "error loading content" message. So the appleTV can see the movies but not play them. So I figured I just needed to update iTunes to be on the latest version as well. This still didn't fix the problem. The media mac is a 2008 Mac Pro running El Capitan. So everything is up-to-date and has been rebooted and reconnected thoroughly. This error effects movies that have been in my library for years with no reasoning behind the ones it effects and doesn't. Some will work...while others don't. I've read that others are having a similar problem, and that Apple will maybe fix it in the upcoming 10.0.* patch... Anyone else out there running into this?