I have Media Center24 running on a Mac Mini Running High Sierra (10.13.6) I am using an Oppo UDP205 as a client. When I launch Media Center, the server icon appears in my menu bar as it should. I can then quit Media Center 24 and the server remains active - for a while. Then I'll go into the Oppo's server list and the JRiver server is there. I open the server and find all my music in there and then I can select what I want to play and it does so without problems. Eventually, however the JRiver logo disappears from the Oppo's server list. Going back to the Mac, I find that the server logo is no longer in the menu bar and has, in fact, quit! Before I upgraded to the latest Media Center 24 build, it was rock-solid and I never had this problem. Does anybody know what could be causing the server on JRiver Media Center to quit like that wither no apparent reason?