Every time we upgrade our firewall firmware our meraki portal goes nuts and looses connection every few minutes. this results in hundreds of notifications as it will be connected to the meraki portal for a few minutes, then disconnect, then reconnect again.
the firewall has all the rules that the resource page lists, not to mention it obviously can get out because it will be connected for 5-10 minutes before disconnecting for 5-10 minutes.
firewall is a watchguard.