Hi @Gareth_Irwin,
Clearly something is amiss here, so I’ve moved you topic to the support section of the forum.
In order for Roon’s @support team to better assist your, 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.