When streaming movies stored on my Mac Mini using the computer option I get pauses in playback. I had no such issues with my ATV3. This is connected via wired gigabit. I have tried rebooting both my ATV and my Mac Mini which did not help. My Mac and iTunes are both fully updated. It happens on both iTunes purchased movies and movies that I have encoded to m4v format in iTunes. When playing via the SimpleX app I have no issues. I also have no problems playing anything back that streams over the internet. Has anyone else come across this issue?