With Audirvana 3.5, I was listening on a Marantz music player connected by Ethernet to my iMac. Since installing Audirvana Studio I can no longer connect to the music player, it doesn’t appear on the “output device” list. How can I connect this?
Try to power cycle the Marantz.
That did it! Turned the power off for 30 seconds, it connected immediately when turned on.