I have another ARC issue, this is a new one on me.
ARC app states “Your core is not configured for access outside your network” (again zzzz)
However, Roon core shows Roon ARC can securely access your Roon server.
Logged out, back in, uninstalled, reinstalled etc.
Running my Core on a Rock pc
My subs expires next week all the Roon issues I have ever had are ARC-related which was the main reason for my purchase, if I cannot fix this easily I think that will be it for me.
Hi @Andrew_Duffield,
Sorry to hear of your Arc issues! If you could, please provide more details around your full system setup, especially your network gear and chain:
ROCK
Your network gear (model of routers/switches) and if on WiFi/Ethernet
Specify what devices you’re using and their connection types, like USB/HDMI/Chromecast, etc.
Tell us how large your music library is, eg. “30,000 tracks”
Tell us about the problem you’re having in as much detail as possible. Screenshots are always appreciated!
Does this issue happen over wifi as well as cellular data?
Roon Rock as OS
Your network gear
Asus Zen Wifi connected by ethernet
Connected Audio Devices
Node 2i ethernet
Eversolo DMP A6 ethernet
Various Sonos
Ipad
MBK
Iphone all wifi
Number of Tracks in Library
100000
Description of Issue
Roon apps show as arc Correctly configured, but even on the home wifi arc reports Core unavailable/poor signal, no chance outside on mobile network
Did you try uninstalling/reinstalling the ARC app? Your first post seems to be saying so, but I’m not sure it includes ARC. In the past this often helped when this error happened even on wifi. I believe this was fixed, at least largely, but who knows.
Note that you will lose all downloads in ARC by doing so
I have installed and reset the ARC app many times yes
Hi @Andrew_Duffield,
Thanks for your update. We may very well have a fix for your issue that is currently living in the early access, which will soon be pushed to the production build you are currently on.
I don’t have any immediate next steps for you outside of waiting for our next update, and seeing if you still run into connectivity issues over cellular data.
I will follow up to check in on how things run at that time. 
Excellent please can you let me know when it is released.
It doesn’t matter what I am connected to my WiFi any other WiFi or cellular
I doubt you’ll get a date for that 
It was released in the Early Access track just yesterday and volunteers are pounding on it. There are new features as well. I suppose it depends on what needs to be improved and other factors, and not even Roon themselves can really know right now. But based on previous cycles, weeks maybe?
So sometimes rebooting my Rock core works for me.
Sorry if you already did this, I wasn’t able to tell.
Hi @Andrew_Duffield,
Do you have a VPN enabled, either on the phone or on your home network?
The symptoms you’ve listed so far are consistent with users who have either a consumer VPN (Mullvad VPN, NordVPN, or similar) or an enterprise-grade network (like workplace or university WiFi).