Got QE65Q950TSUXRU & UE65TU8500UXRU, both with 2303 firmware
Both connected over LAN ports.
Playing video from my miniDLNA server makes the connection drops and go from DLNA mode to TV mode. The bigger file size (or its video resolution, don`t know) the faster translation will be stopped.
SOLUTION: i managed to change bridged port settings (in which the TV connected) on my mikrotik switch to:
And it solved the problem!
Strange thing #2: Manually setting port speed to 100mb makes TV unavailable to discover the network.
Tested on different switches. ASUS RT-AX89X and ubiquity 8port PoE switch shows the same result. Microtik CRS328 with default settings also makes the connection drop.
Only changing listed options solves the problem. Of course the problem could be in minidlna-1.3.1 package. Do not really know.