New Plex user … beware of some SUE “Stupid User Error” questions.
I installed Plex server on my Win 10 PC. I previously had Plex on this machine (4 yrs ago).
System SKU LENOVO_MT_80HE_BU_idea_FM_Lenovo YOGA 3 Pro-1370
Processor Intel(R) Core™ M-5Y71 CPU @ 1.20GHz, 1401 Mhz, 2 Core(s), 4 Logical Processor(s)
8 G RAM
WiFi only
I have a WD MyCloud (not MyCloud Home) an Integra DRX receiver, 2018 LG C8 OLED.
All components are hard wired, except the PC which is WiFi only.
This was a fresh install.
The Web UI came up and all seems ok…
I added a small library of 4 K sample files on the PC which Plex found and I used the LG C8 Photos / Video app, which supports DLNA to access.
PLAYED beautifully…video and audio.
Next I moved some full 4K movies to the folder. They played video A-OK (On one the HDR came up in the corner of the LG) , but when they started there was a note at the top saying “Audio not played” (or something like that). The video / audio was good…but there must be something I am missing about the audio settings…
Here is the data on the file:
Duration : 2 h 10 min
Video : x265 3840x1608 (23.976 fps) @ 13.2 Mb/s (CRF 17)
Audio : English Dolby Atmos 7.1 @ 4252 kb/s
: English Dolby Digital 5.1 @ 640 kb/s
Is there any audio settings on the Server (couldn’t find any)
I presume the setting is on the client side …is there a Plex client for the LG (that is any good?)
Rather than play via the LG …is there another recommended approach.
Not anxious to add an other component to the setup…I have pretty much blown the “budget” on what I have 
Thanks!!!