Hello @Patrick_O_Brien,
Thanks for contacting support. Can you please provide a description of your setup using this link as a guide? Please let us know the make/model of any networking gear you have and how your Mytek is connected in the setup (Ethernet or WiFi). More information regarding your Core and what Operating System and Roon Version it’s running would be helpful as well.
Do you have any other Networked DACs that are failing to show up or is it only the Brooklyn? Have you rebooted your Core and Mytek? Do you by any chance have a firewall active that could possibly be blocking Roon from discovering the Mytek? Please let me know your replies when possible.
Thanks,
Noris