Roon server on Mac OS Big Sur can't find roon streamer

My Roon server running on Mac OS Big Sur (Machine Mac Book Pro, big sur 11.6.2) can’t find the roon streamer (Auralic Aries G2.1). But my wife’s Mac OS High Sierra (machine mac book pro, high sierra) can find the streamer just fine. Please help.

Is there a way to get Roon support to look at this? I have sent them a couple of messages but no response yet. @RoonFAQ @moderators