Hi @JasonV ,
There are different scenarios impacting/non-impacting wi-fi services when the Smarzone goes down from the network.
1- If you have SSIDs which are APbridged, there will be no issue to the existing connections.
2:- If you have SSIDs which are operating in tunnel mode, you will see issue with connectivity to all the connection, even existing clients.
Additionally to prevent APs from reboot during the activity, change the below setting in the AP zone>>> Advanced Option>>>AP Reboot timeout(If cannot reach the controller after = 0(never reboot)).
Staff Technical Support Engineer
CCNA RnS | CCNA Wireless | RASZA | Meraki CMNO | RACPA