I’ve been through the setup sequence, selecting “Use media network to share this library and enable DNLA,” then selecting “Audiophile 24-bit DAC (PS Audio, etc.)” “Finish”, then “OK”. When I do this, under “playing now,” I only see “Player” and “Playing from Main Library.” “Player” outputs audio through my laptop speakers.
Is the problem that I’m using a switch instead of a router to connect the computer with the DS? That seems unlikely to me, since (I think, though I’m not a networking expert) that’s the correct tool to use here.