I'd also add that next time this happens (If it does). Access the local status page of the MX450 (If possible) and download the support data.
Pass this info to the Meraki support team. It'll help diagnose any issues and provide logs which might be lost after a reboot of the appliance.
Eliot F | Simplifying IT with Cloud Solutions
Found this helpful? Give me some Kudos! (click on the little up-arrow below)