MrMC

Can you increase the buffer somehow?
I have access to the Plex Mediathek from a friend and unfortunately jerks the stream after about 30 seconds always.

see setting->system->internet access-> buffer size

EDIT: if you still have buffering issues, then what you are stream exceeds your network (or his) bandwidth capability and you will need to transcode to a lower bandwidth. Of course this assumes that your friends plex server has the ponies to realtime transcode.

Thanks for your help.
The bandwidth of my friend is 40 MBit/s upload. This is definitely enough.
I have a download of 16 MBit/s and that should also suffice.
Transcoding is unfortunately nothing since the server runs on a QNAP NAS with ARM CPU.
I will try the settings however tomorrow and then report back again.

1080p content can easy blow past 16 MBit/s.

Have the buffer a bit increased and now everything works perfectly