any resolution?  We seem to be having a similar issue with a meraki stack and a Cisco 9300 as the uplink.     Top switch is a Meraki Core switch.. during it and every other switches "down time" we had it going to a Catalyst 9300.  the Stacked switches were saying DNS misconfiguration. ... View more

once the switch is being shutdown the port channel will down. once the port channel no traffic able to pass through the firewall.  ... View more