Hey @Dan_Clark,
Thanks for the follow-up and for your status update. Glad to hear you’ve had a smooth run with playback since removing Teams!
There have been known issues in the past with the way Microsoft Teams handles the audio driver on Mac or Windows machines. While I can’t say specifically why it happens, situations arise where Roon and Teams are both fighting for control of the audio driver, and can lead to Roon losing connection, resulting in the symptoms you’ve experienced.