Hey @Phil_Smith,
Thanks for posting your question, we’d be happy to take a look and help with this.
First, I’ll move your thread to the support channel, we can’t always keep as close an eye on the Roon Software channel. Posting in the support channel is the best way to get our attention.
You can also use @support to get our attention directly.
So we can better assist you with your Sonos issue, 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.