Sonos specifications indicate UPNP compatibility.

There is an option in the settings menu to enable UPNP functionality.

After this is enabled, the UPNP servers on the local network should show up in the Browse Music area.

However, I cannot find a UPNP server for the Mac that actually works.  Sonos cannot see any of them, even though other clients on the same network see them.

I realize there is a “pay to play” feature to use PLEX’s proprietary system, if I am okay with opening my local network to remote access from the Plex servers in Virginia.  But I don’t really need another monthly fee and security concern….especially since the functionality I seek is apparently already built in to Sonos.

The only media server I have read about working with Sonos locally is the Windows Media Server….which of course it not an option for my Mac.

Has anyone figured out any Mac media servers that work like that?