Hi @Paul_Phillips,
I’ll tag @support for you.
In the meantime could you edit your post to complete the proforma questions … as this will aid the support team to diagnose and give you the best advice.
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.
Can you share a screenshot of what you see in Roon?