I got this reply from Meraki Support: There is no clear answer into why the Summary Report shows that massive spike but I believe it does have to do with that ISP outage. I did find out there is a reporting difference between the client usage page and the summary report: - Summary Report deals in only full day intervals (midnight to midnight) - Client List displays from the time the page is loaded to whatever time selector is set to So yes they will be off. I have to do more research if need be and ask our UI/development team which may take a minute.
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