Discoverability issue | Waiting for you Roon server

Dennis_Mutsaers · August 27, 2025, 3:32pm

My android phone can’t find my Roon server (Roon + Roon ARC, LAN + WAN)
• When it happened (local time)
17:23 (2025-08-27)
• Core device/OS and Roon build

• Router/AP models
UniFi Cloud Gateway Max
• IPv6 status (on/off. If not sure run the test suggested in the article)
IPv6 on
• Any unusual network details (VLANs, multiple routers, VPNs)
No

It seems like the issue mostly happens on my Android devices — Windows machines don’t seem to have as many discoverability problems.

Restarting Roon on Android sometimes helps, waiting does not.

These issues are new, I haven’t experienced discoveribility issues before.

Dennis_Mutsaers · August 30, 2025, 6:16am

Should this have been posted in Support?

Geoff_Coupe · August 30, 2025, 6:23am

You are running EA builds, so the place to report issues is indeed here in Early Access

Dennis_Mutsaers · August 30, 2025, 7:03am

Roon ARC works after clearing the cache and removing data, on the local network only. However, Roon (Remote) still refuses to start after performing the same steps. (Both on Android)

Dennis_Mutsaers · October 1, 2025, 7:12am

I suspect a lot of my Roon discovery issues are due to UniFi switches and gateways. UniFi really managed to royally screw up IGMP and mDNS. Fortunately, the latest Early Access firmware (7.2.122 for switches) seems to fix things (fingers crossed).

Dennis_Mutsaers · October 21, 2025, 7:05am

That being said, Roon ARC has not been able to connect remotely for a few months now.