It is Fritzbox 7530
Needed to go,
Settings…Internet…Permit Access
In there at Port Sharing, put in the desktop.
Now it’s working fine>
I’m not sure about how to do all this kind of thing and hope that it’s safe to open the Desktop .
But it worked.
Thanks for the help people
EDIT:
Just tested it out in the car on Android Auto, and despite having tidal available in the car I have to say, Roon Arc is a fantastic utility to have!! The only downside seems to be that I must leave the computer on for it to work.
I guess this is another reason for Nucleus, because I would just leave it on anyway. Right?
Fantastic! Glad to hear you have access to Roon on the go now.
ARC does require an “evergreen” server that remains on in the background - if you’re using a laptop/desktop, then you can try third-party apps like Amphetamine to prevent automatic sleep/hibernation from closing RoonServer.
An investment in a dedicated server - like one of the Roon Nucleus series - is the ideal solution to the problem.