Roon Server Machine
Mac Mini (Mid 2011), 8GB RAM, i5 processor
Running Ubuntu 23.4 natively (i.e. not virtualised)
Networking Gear & Setup Details
Ubiquti Unifi Dream Machine Pro
Ubiquiti Unifi switch, ethernet connection between Roon server, NAS, and internet
No VPN in use
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Who is your internet service provider?
Virgin Media (UK) - 1gig connection -
Please list the make and model of your modem and router?
Virgin Media Hub 4 (in modem/bridge mode) -
Do you have any additional network hardware, like additional routers or managed switches?
Yes, a lot - full smart home set up. -
Does your network have any VPNs, proxy servers, or enterprise-grade security?
PiHole as DNS server
Connected Audio Devices
Trying to connect to Roon ARC using my iPhone.
Description of Issue -
What is the exact port forwarding error message you see in the Roon Settings → ARC tab?
Roon app on my Mac shows that Roon ARC is ‘ready’ and that my Roon server was automatically configured and has been confirmed to be securely accessible by Roon ARC. However, the Roon ARC app on my iPhone lets me log into my Roon account then just spins on the “searching for Roon Core…” screen.
I have so far:
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Unifi router
- set up a port forwarding rule for 55000/tcp to connect to the Roon server (192.168.1.76)
- tried with/without UPNP set up on the internet screen (and NAT-PNP)
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Ubuntu server
- configured firewall rules for ports 9003/udp (from 192.168.1.0/24), 9100:9200/tcp (anywhere), 55000/tcp (anywhere),
- tried with/without the firewall enabled
- disabled IPv6 on the server completely
- set a static IP of 192.168.1.76
Roon (inside the house using Roon remote and playing on speakers) works flawlessly. It’s only Roon ARC which doesn’t seem to want to connect, either on the local LAN or externally on 5G or other Wifi networks.