Hi @john_Busch,
So we can better assist you, please provide a brief description of your current setup using this link as a guide.
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.
Also note that we have been investigating a similar issue that appears to be affecting a small number of our customers and is preventing them from using the Roon Radio feature. We have a ticket open with our development team and we are hoping to have a solution here soon!