Hello @Mark_Saunders1 I’ve merged your posts into one thread so that support can help you better. It’s best to have one thread, one issue.
In order for Roon’s @support team to 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 they can have a clear understanding of how your devices are communicating.