Streaming of MPEG-4 files stops every few minutes

[BeFi]

I am streaming HD format MPEG-4.ts from my desktop to my Samsung TV's (one C-series, one D-series device). My Mezzmo version is 2.5.0.

The files play fine when started but stop after 2-3 minutes without any warning - no stuttering, no artefacts - they simply stop.
I have to press the stop button for Mezzmo to return to the video selection screen and can then restart playing the files without any issues.
Playing starts from the beginning, even on Samsung C-series which normally supports playing videos from last-viewed point.

The stopping is repeatable but the streams are NOT stopping at the same point every time.

There is no transcoding going on when played. Processor load is app. 5% while streaming.

I attach logfiles and kindly request your analysis.

Best
Bernhard