Same problem. Only restarting my MacBook (core) solves the problem. That is a dealbreaker for me. Tidal app works flawless. Roon doesn’t connect after a few hours.
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.