10.11 cannot stay running

[dum]

Upgraded from 10.10.7 to 10.11.1 on Windows 11 a few days ago and the server keeps stopping. I don't even know if it crashes :-/ (I do think so, but have no proper indication).
10.10.7 ran very stable.
If I start the server, I can watch a full movie without problems. I can pause the playback and resume a little while later. If I then go to bed (after finishing the movie and now idling away), the server will have stopped when I wake up again.
If I run a media library scan, the server will stop within the first few minutes. (The scheduled library scan may be what is killing the server).

Please advise.

ang

I Have the same configuration and the same problem. I agree with this :  The scheduled library scan may be what is killing the server