Thank you for sharing those detailed logs. They identify the issue immediately.
The errors you are seeing ("status_code": 530, "error code: 1016") indicate a temporary issue on Cloudflare’s side (the service we use for ARC connectivity testing), rather than a problem with your Roon Core or your home network.
Since this is an external cloud service interruption, it should resolve itself automatically once Cloudflare stabilizes the connection.
Please wait a short while and then try to refresh the Roon ARC tab in your Settings. Once the “530” error clears, the actual connectivity test will run, and we can see if any further configuration is needed for your TIM Hub+.
The Roon ARC test returns the usual error. I’ve currently configured the ROCK to use Tailscale, and I’m having no ARC issues with that. However, I’d like to use port forwarding as I’ve always done over the years.
Just to close the loop here, all infrastructural issues affecting Cloudflare and Roon’s servers per this report have no been resolved. You shouldn’t see the 530 error in the port test in Settings → ARC at this time.
Please reach out if you’re having any actual connectivity issues in ARC itself.