Did you upgrade your remotes to 2.0 and upgraded the Core to 2.0?
It may require a reboot of the Core or a restart of the Core software.
Roon needs to request a port forward via uPnP or else a manual configuration of a forward is needed on your router/firewall.
Try to reboot your Core and see if the error message has changed.
Did they also make sure to check that the specific port use by Roon Arc is forwarded in your router settings? You should be able to do this yourself by googling the name of you router and “port forwarding”.
It really just is a matter of allowing an external connection over the internet to access that specific port on your Mac mini. You will find the port in question in the Roon Arc settings of your Roon Core:
P.S. You can change the port that your Roon Core has already selected, but there really is no need to. You will need to enter this port number as both the “external” and “internal” port in your router settings, i.e. you will not be specifying a range of ports just the one you need to allow in order for Roon Arc to connect.
I really don’t know exactly what they checked, sorry.
My router does not have inputs for external and internal start ports, it just says start port and end port which are both set to 55002, same as Roon. Is that the same sort of settings?
Ports 52000 to 52050 all reports as filtered (Roon listens to port 52002). I don’t quite understand how to do number 1: Open a port. When I Google I get results how to forward a port “2”, and that seems to do very little. Oh, and Roon Core is running
Well, they don’t seem to know what I ask for, and I really don’t know how to ask in a way that they would understand. All of this is spanking new to me. A few days ago I was vaguely aware that there are somethings called ports in a network, and now I desperately try to get a grip.
Zyxel is the only router.
It’s a fiber optic connection. Bahnhof says that they do not perform NAT from the Optic to Ethernet modem.
Earlier I got rid of the multiple NAT error when I closed VPN, but it’s off now.
I have had four support calls to Bahnhof with four different technicians. I will try again and hopefully get one that understands my questions, that I really doesn’t understad fully myself