This happened to my NOC. Multiple sites seemed to have dropped for about 7 minutes, but there was one site that we manage that was not affected. Meraki confirmed that this was only a cloud management outage as hosted services migrated to another site since the affected site was under an outage. No actual service impacted issues, just management/visibility. I imagine you'll get the full details if you call them or open a ticket with them against one of the networks that were affected in your organization.
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