I’m using a Mac Mini as my Roon Server and connecting it to my Dell U2725QE monitor via a Thunder Bolt 4 cable. I’m also using my Windows computer (which is connected to the same monitor via a DisplayPort cable). My Mac Mini is always powered on. When I open Roon on my Windows computer, it can connect to my Roon Server (Mac Mini), but I can’t see any of my Windows speaker devices in the “Audio Devices” list; I can only see the devices connected to the Mac Mini. I’d like to resolve this issue. Thank you.
Welcome to the forum! Since you are using a Windows PC, I would verify that both Roon.exe and RAATServer.exe have been added as exceptions to your Windows firewall.
You can use these instructions to add the exceptions and the executables themselves would be located in your Database Location/Application folder path.
I would also add these exceptions to any Antivirus or other Firewall blocking applications you may have and ensure that you connected to your network via a Private network, not a Public one, see this guide for more information.