Mac Mini (2018) macOS Catalina 10.15.3 / No Firewall / Roon 1.7 (Build 528)
Remote Machine
Mac Mini (Mid 2011) macOS High Sierra 10.13.6 / No Firewall /
Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)
Router Vodafone Sercomm 963168_SERCOMMVOX25 / interconnected via Ethernet
Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)
AudioQuest DragonFly USB DAC connected to Remote MacMini running Roon Bridge
Description Of Issue
I’ve connected AudioQuest DragonFly USB DAC connected to Remote MacMini running Roon Bridge,
I don’t see it in the audio devices list of Roon Core.
I am forgetting something?
Sorry for misunderstanding Roon Bridge is missing in about setting
An information can be useful, in the Remote Mac is also installed Remote Roon and it works well to control remotely the Core
Following screenshot is Remote Mac where is installed Roon Bridge and Roon Remote Control , I changed the Language for better understanding, V2 is really VNC app (a viewer of RealVnc.com). I switched off it, but nothing.
Try setting it to not start and then reboot so you can guarantee that it is not loading any drivers. Even if you shut it off, it might have loaded drivers in the background which can affect multicast discovery.
I tried, reboot both Mac with VNC off: always the same situation.
A question, if the remote control finds the core the multicast protocol would be working, or it is different in this case?
I put DragonFly in the core and it is seen, look the screen
Both Macs are connected to the router, correct? They are not using a direct Ethernet cable between them? Because from your description it sounds like they might be interconnected with each-other and not to the router.
I know you said there’s no firewall, but I would also check the MacOS firewall to make sure that both Roon and RAATServer have been added as exceptions, you can use these instructions from Apple to check this aspect.