[ubuntu] Ubuntu Server 14.04 and Plex Media Server

I'm not getting any traction on the Plex forums, so maybe this is something for the Ubuntu forums.

This is copied directly from the Plex Forum:

I'm not sure if this is a Plex issue or a Linux (Ubuntu 14.04.4 LTS) issue, so I figure I'll ask here first.

Often, we'll set up the Plex (playing through Xbox360) to play a big queue of kid shows for my daughter, which typically becomes background noise for her, and after it plays about six episodes back to back (about 20 minutes long each), it freezes, I can't ping it, and I can't get a response from the display direct coected. I'm forced to power it off and back on to get it back online.

Has anyone else had this issue, is there a way to fix this?