Zeppelin Air Connectivity on MacOS

Audirvana recognizes my Zeppelin Air and displays it as a selectable UPnP audio device in the Network section. If selected music will load as viewed in the progress bar but it will not play. If I select Built-In Output I can Airplay to the Zeppelin through Airfoil selecting the Zeppelin. When connecting via AirPlay I am limited to 16/44.1 the max that AirPlay supports. I would like to take advantage of the higher bit rate indicated in the UPnP page for the Zeppelin. My Sony television shows up in the Network list and will play if selected. Has anyone figured out how to connect to the Zeppelin through the Network selection?

Searching on the web it seems that Zeppeling Air do not offer UPNP capabilities
You can find it here https://www.avforums.com/reviews/bowers-wilkins-zeppelin-wireless-speaker-review.12117
And here https://yabb.jriver.com/interact/index.php?topic=114234.0

Thank you. That explains why it will not function in the UPnP mode. Use through AirPlay works well.