That's the problem. the field won't set back to empty if you set the secondary concentrator as "none" and toggle it back on. The field is buggy and won't reset back to empty. I also wanted to see what would happen while its empty. ... View more

I don't know the answer, but I have a couple of ideas to look into.   The first is the API call to check the wireless controller by device.  I think this reports whether each downstream AP is online or not.  I think. https://developer.cisco.com/meraki/api-v1/get-organization-wireless-controller-overview-by-device/   This API claims to list the connectivity history.  Maybe an option. https://developer.cisco.com/meraki/api-v1/get-organization-wireless-controller-availabilities-change-history/     The next idea - when the connectivity was broken, take a look in the Meraki event log.  It probably had some event, saying something went down.  Try retrieving the events via the API filtering on this specific type, for say the last 24 hours.  If you get something, and you haven't seen a subsequent "up" event, it is probably still down. https://developer.cisco.com/meraki/api-v1/get-network-events/   ... View more