This one I understood :-)
I have found all the items and reset as yo suggest.
Now to see if it works...
(09-06-2019 18:26)AMP Wrote: This is likely an issue of your mac going to sleep during playback as Simon mentioned. Based on what I've read here you've likely changed the wrong setting on your iMac.
1) Go to the main MacOS settings app and select Energy Saver
2) Make sure that "Prevent computer from sleeping automatically when the display is off" is CHECKED
3) Make sure that "Put hard disks to sleep when possible" is UNchecked
The other settings on this screen aren't relevant for this use case.
4) Now go to the "Desktop and Screen Saver" section of settings
5) Select the Screen Saver tab
6) In the bottom left corner of that window make sure "Start After" is set to Never
The reason for the latter is that some of these screen savers are CPU pigs and can interrupt I/O when they start if there's a resource constraint. This can cause network I/O to interrupt at the operating system level which could result in some instability.
Furthermore, make sure that Minimserver is the only UPnP software running on the mac. Don't try to run Asset or Twonky at the same time as the behavior will be unpredictable.