Live hub audio dropping out

My live hub was working perfectly until I played an mkv file a couple of days ago. The audio dropped out and despite 2 resets, firmware updates and cable changes the .avi files that played seamlessly before now lose audio after 10 - 20 seconds of play. Hitting pause then play gets the audio back, but that’s obviously not ideal. 

Going to try and rollback the firmware tonight, but wondered if anyone out there has a solution or experience with this problem?

The most common reason for that is a network issue.

Now, if these are on the internal or a USB attached drive, then something else is going on.

The files are on the internal drive, so something else is definitely going on. The firmware rollback helped… for about an hour then the same problems returned. Might have a dud.