Thanks for reaching out, @graham_answerth!
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.
Please also verify the following:
- Has this behavior always occurred with Roon?
- Does this behavior occur with all endpoints?
- Have you tried rebooting your Core machine and endpoints?
Thanks,
Dylan