We just experienced a Meraki network-wide outage (over 200 sites) this morning where users were unable to get to outlook.office365.com and outlook.office.com. All sites are configured to route to the internet directly out of their local ISP via an MX firewall. Did anyone else experience this? It lasted at least 2-3 hours. It just resolved by itself without any changes made to any configuration. During the troubleshooting, as a test, I set one network to have a default route via the site-2-site VPN at our hub site (which then routes to the internet via an FTD), with that configuration, the user was able to get to office365. What could have happened? Anyone know?
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