I have a new 2016 8gb Mac Mini and I can't play any movies I'm playing through an Apple TV. It just buffers all day. For starters here is my first issue.
Before playing a MKV movie I change the Quality to anything but "Original 1080p". I go back and play the movie. It buffers and buffers and buffers. If I'm lucky I see the movie playing but this is rare and only plays for 1-2 minute before buffering again. If I got back to the Quality setting again it is back on "Original 1070p". It doesn't matter what I set the Quality to. If I get back to the movie, play, and go back to Quality it is always on "Original 1080p". Whatever I change it to never sticks.
I've been running PMS on a 2015 MacBook without issue prior to setting PMS on the new Mini.
I've never had any network issue and generally get 50-60mb on Speedtest.net
PMS is 1.3.3.3148-b3862e.
macOS is Sierra 10.12.2
Any help would be much appreciated.