Thanks for your reply!!
I tried your suggestions but none of them gives a solution. I tried Resync Delay up to 10 seconds. It does not make any difference. Furthermore the option “Event Driven mode” is not available. Stopping apps on the Synology does not help.
I wrote earlier that it is unclear to me why it is helping when I pause the playing of a song about 3 seconds or so after the beginning. There are no problems with my network (see earlier tests), And if the CPU power is the problem, I would expect that playing is also a problem after pausing the song. I am curious to hear about your thoughts about this phenomenon. Until now you did not wrote about this. Thanks in advance!
Best regards,
Alfred