Maybe the controller wasn’t closed before being reopened at the second location. If it was still running it might have retained the IPs of the first household, which it could then see via the VPN.
A VPN typically won’t pass the controller’s discovery multicasts/broadcasts, so on reopening at location 2 the controller should just have discovered the local household.
(As an aside, running two households on the same subnet using the same controller -- both discoverable -- is a troublesome way to proceed. It’s pot luck which household the controller will pick when it opens.)
They’re on separate subnets that are routed between one another. I’ve never had to close or do anything to the app to get it to recognize the correct location. Just like when I’m out of wifi range, the app tells me so, and once back in range, it reports the correct sonos system, or none at all if it’s not my network. Until recently where it defaults to the last used. Apparently the app is now not switching systems if there is a route to the last used system.
By default a Sonos controller will only discover players on its local subnet. However, as I intimated, a sleeping controller can cache player IPs and, if they remain reachable, continue to access them from a different subnet when it’s re-awoken.
If a controller has been fully exited and restarted I don’t know of any way it could continue to access a household on a different subnet, unless specific forwarding rules had been set up between the subnets.
Hi.
I have exactly the same problem as scottresnic. Two systems in separate locations, different subnets on a vpn, no specific forwarding rules set up. Sonos app switched automatically between locations until this August. Now I have to reset the S2 app to get it to switch.
Just to add another case that seems to point to the S2 app as the culprit. I was at a friend’s house this past weekend, and wanted to operate as a guest with his Sonos system. My app just showed blank, grey boxes for each one of my Sonos units. I had to reset the app to get the local Sonos system to show up. Once i did, it worked fine. When I returned to my home, the same thing happened. Gray boxes for the friend’s Sonos system, until I reset the app.
I switched locations today for the first time since upgrading to iOS 14.0. This time the Sonos app (12.0.6) correctly switched and connected to the local system. I will be keeping my fingers crossed that the upgrade has solved the problem permanently.
