I have plex server installed in a Proliant N54L server that runs correctly with the last version.
My TV is a UE55JU7000 model which runs 4k content correctly when using a hard disk or pendrive connected to it.
I have the last version of plex client for this TV.
I have tried playing 4k content using direct play (not transcoding, just playing in the original quality) and its not possible to run it, it is buffering or stopping all the time.
My local network connection is gigabit and CAT6 cable (i dont use wifi connection). I have tried connecting a computer to the RJ45 cable that i use to connect the TV ( to test the speed) and its transferring files from the server at 90-100MB/s speed, so all seems to be OK in the network speed.
Any way to solve that problem?
I have a Xbox One X (the last xbox version that runs 4k games) with plex client installed too, and I have the same problem with 4k content.