Hi! What’s not quite right with Roon? · None of the above quite fits
None of the above quite fits · None of these quite match
Tell us what's going on · Roon ARC is working and connection status shows green light on both Cloud and Roon Server. However, Roon ARC diagnostics show "Not Ready". { "ipv6_connectivity": {"status":"NetworkError","status_code":526,"error":"error code: 526"}, "ipv4_connectivity": {"status":"NetworkError","status_code":526,"error":"error code: 526"}, "external_ip": {"actual_external_ip":"59.aaa.bbb.ccc","actual_external_ipv6":"240d:ddd:eee:fff:kkk:lll:mmm:nnn","router_external_ip":"59.aaa.bbb.ccc"}, "natpmp_autoconfig": {"status":"NotFound"}, "upnp_autoconfig": {"status":"NotFound"}, "multinat_autoconfig": {"status":"Success","error":"No Error","routers":1,"routers_mapped":1} }
Tell us about your home network · My ONU is ZXHN F660P and no switches, extenders, or VPN is used.
Suedkiez
(Just a fellow user like you)
February 15, 2026, 5:32pm
2
Known issue related to Roon’s ongoing cloud issues. Seems to affect the diagnostic error only, as ARC works anyway. Ignore until they fix it.
At least we can still go and play some music.
Thank you for responding. According to your kind suggestion, I will ignore this problem until they fix this.
1 Like
vadim
(Vadim)
February 16, 2026, 12:39pm
4
Hi @Katsu_Takenaka ,
Just to double-check: is ARC actually working for you (e.g., can you play music successfully over a cellular connection), or are you currently unable to use the app remotely at all?
If it is playing fine, you can safely ignore the “Not Ready” / Error 526 message for now—it is a known display glitch we are working on fixing.
Yes, ARC is playing music nicely. Thank you! I will wait patiently for you guys to solve this problem.
It has been solved! Thank you.
system
(system)
Closed
February 17, 2026, 8:33pm
7
This topic was automatically closed 24 hours after the last reply. New replies are no longer allowed.