Synology RT2600ac router
Netgear unmanaged switch
Core connected via ethernet
Connected Audio Devices
iPhone X connected via WiFi and 4G
Number of Tracks in Library
47000 tracks
Description of Issue
I was using ARC on my iPhone 8:30-9pm yesterday evening (GMT) without issue
Overnight I think Roon then automatically updated to the latest build, on both core and remotes.
I opened the ARC app this afternoon to download an album before going out and message “Core last seen 15 hours ago” displayed. The app will not connect to the core, or let me play downloaded material.
I have now tried the ARC connection test in Roon settings, but the test never completes; no message is displayed, just the circle of death.
Your report suggests the symptoms of an authentication mismatch - does a reinstall of ARC on the iPhone by chance restore connectivity? Other possibilities include a certificate expiration or firmware update on the part of the router, or some port reservations that have been put in place by the ISP and are blocking the port test. If you restart the router, does that allow the port test to complete?
We’ll proceed from there if not, and I’m sorry to hear you’re experiencing issues.
@AndyR, are there any diagnostics displayed in Roon → Settings - >ARC, or is the port test similarly hanging for you?
I’m also having the same issue cannot connect to the core via wi fi while traveling or on my home network I m on Fios and use a sonic transporter I re booted router reinstalled arc with no success
I have found that I can break out of the port test hanging by turning off upnp in the router, at which point it completes the test, indicating a fail, and flags some diagnostic text as you would expect. It will hang again if upnp is reenabled.
BUT if I leave upnp disabled and manually configure port forwarding, the test completes, and ARC works.
I used a different port number to the one previously selected by Roon; I didn’t try all permutations of same/different, and I wasn’t especially consistent with stoping and restarting Roon Server during testing.
ARC tested on iPad house WiFi and Android phone house WiFi and cellular 4G; Android ARC is still on the previous build.
Automatic port forwarding configuration was previously working ok.
I don’t think I changed anything other than updating to 1216, but I have no control over what Virgin might have done!
Thanks @AndyR for all the testing. I’ve tried the same steps myself and have had the same results
I also re-enabled UPNP, but kept the new port number. ARC is still working and the test passes as well.
This doesn’t explain what the root cause is, but feels like something at the Roon end with the latest release.
I’m surprised more people aren’t having this problem tbh.
So, @connor , what more would you like us to do to help find the root cause? This solution is really just a workaround and not something a user should have to do.
Regards
Nick
PS. Andy, my ISP is also Virgin, but the modem only in modem mode.
Thinking on this more, I wonder if just changing the port number would sort the problem. Obviously, it’s too late for us to test this opti0on, but perhaps the next person who comes along can try it
The issue might be limited to people on early access with a Virgin Hub 3…
Not sure we could have just changed the port number - I had to disable upnp to break the loop, then I’m not sure there was an option to select a port number in Roon before turning upnp back on. Sequencing is likely crucial, and I’m not sure I want to beak it again to find out!
So just installed the new build 1218 and ARC is broken again. The ARC test fails as well.
So, I disabled UPNP on my router, rebooted my Core and switched UPNP back on to fix it. I did not need to reboot the core again or change the port number.
As this has now happened on two consecutive releases I believe this rules out coincidence, and requires further investigation to see what’s causing it.
Thanks for this hint…that could be me! I’m out and about now but have the same symptoms after updating - I’ll make use of your experience in trying to fix it. (BT hub as modem for me with Unifi Dream Router).
Same here on Fios Router
Disabling UPNP, while not clearing out The Port forward and Static IP settings Arc had previously set allowed the arc test to pass. Arc is now working on mobile app.
I have not tried re-enabling. Don’t want to risk breaking it again!
Having the same problem here in Germany… ARC was working flawlessly over the last months, and all of a sudden it can’t connect to the core anymore, and in the ARC settings tab, the Testing doesn’t complete.
I live in Germany, my internet provider is M-Net and I’m using a Fritzbox 7490.
Disabling UPnP didn’t make a difference in my case, the problem persists. Would be great to get a solution soon!
