Hi @Paul_Whittaker ---- Just touching base with you in regard to the above, thanks!
Additionally, I checked on the status of your ticket and it is still with the tech team who have been evaluating the issue you are experiencing with the S9+. I expect to have some feedback soon and will be sure to update you accordingly.
To update this thread I have discovered its a firewall issue. When I disable my firewall it connected instantly. I am trying to figure out the best way to allow my phone to connect to Roon without comprising anything security related.