Latest Plex running on latest Truenas and several Samsung QLED 4k tvs connected on same Ethernet.
1080 movies runs fine
4k seldom run fine, buffering and micro pauses and something stops with errors.
If I have the video on usb-stick in the tv it plays just fine.
It’s plying in direct with h.264 and hevc in these tests
Where should I begin searching for issues?