After the latest update to 5.2, my ATV3 is now painfully slow buffering movies from my 2012 Mac Mini. Prior to the update, I had no problem playing 1080P movies from my computer to my ATV3. They would start playing in seconds. Now they take hour(s). To test whether it was something with my encoded movies (which worked fine prior to the update), I purchased an HD movie from iTunes (Hotel Transylvania). This movie is now downloaded to my iTunes library, but I can also stream it from icloud since it is purchased content. When I try to play this movie over Home Sharing, it takes hour(s) to start playing. If I choose the same movie in iTunes, so that it is streaming from the cloud, it plays flawlessly. So it doesn't seem like a network bandwidth problem... My computer, which is in the same room as the ATV3 also is able to stream the movie fine, and again, was perfectly capable of home sharing HD content before the 5.2 update. I have restored the ATV3 once already and rebooted many times. Still no luck. Do I have to go the route of downgrading back to 5.1? Any other ideas?