I'm unable to find my Roon core

Core machine: Mac mini (mid 2011) MacOS Sierra 10.12.6
Ronn version 1.6 (build 416)

Network Details:
networking gear model: NEC Aterm BL1000HW
Core PC: on WiFi 11ac
This Mac mini: on ethernet
Other remote devices:
MacBook Air (Retina, 13-inch, 2018) on WiFi 11ac, controller is working
iPad: on WiFi 11ac, conroller is working
iPhoneX: on WiFi 11ac, controller is working

OPPO UDP-205 USB to Core, WiFi as Roon Ready
ECLIPS TD-M1 USB to this Mac mini, Airplay through WiFi

Description Of Issue

I added another Mac mini (2018) MacOS Mojave 10.14.4.
Software installation was successful.
The software stops as follows;

Using “Help”, I put an IP address of
But, the situation didn’t change.

Roon recommends that the Roon Core network is wired.
Make sure your new Mac Mini is connected to the Network.
Can any other devices (iPad, etc) detect the Roon Core?
Reboot the Core machine?

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Sometimes your firewall will keep Roon from ‘talking’ to remote devices. It looks like maybe your Mac Mini has a firewall that is keeping it from getting communication from your existing core.
If you choose to set up the core on the Mac Mini directly, that core is waiting for you to use it. It will likely need to have you deactivate the other core. But if you have a firewall issue it may not be able to do that. I don’t know if that happens directly between computers or via network to Roon Labs.
Easy first step is to turn off the firewall and see if that helps.

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Hi @Michiro_Sugitani,

If possible, can you try connecting your Core machine via Ethernet instead of WiFi? As mentioned in our Networking Guide, we recommend using Ethernet whenever possible.

Is this occurring with all remote devices?

Thank you for quick response.

The new Mac mini is surely connected to the Network.
It recognizes the Core Mac mini through Finder.
Other devices including MacBook Air with the same OS as the new Mac mini
detect the Roon Core.
Rebooting the Core machine did not change the situation.
The only way I didn’t try is that the Roon Core is to be wired.
However, it is very hard to do right now. Could you explain how important
it is?

For your information, no PC sets the firewall at all.

As suggested, please check your Mac firewall settings, its in System Preferences > Security & Privacy > Firewall. You need to allow incoming connections for Roon and RAAT:

2 posts were split to a new topic: Unable to connect to Core machine

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