Trouble playing MKV files
Bit of a problem, I'm trying to play 'Planet Earth 2' UHD version that is loaded in my external HDD hooked up to my Sony TV, Shield TV & Mi Box, but every time I try to play it, it never plays and I eventually get the message
"Playback has stopped because the connection to the Plex Media Server has been lost. Please ensure the server is available and retry.
I've tried toggle audio passthrough, but nothing gives. Each file are MKV format with DTS-HD 5.1 audio and SRT subtitles embedded.
Sony TV, Shield TV & Mi Box are connected directly by Ethernet via a switch, all Plex apps up to date
Would appreciate help, many thanks in advance!