Microsoft 365 Outage: Azure Maintenance Bug Wiped IP Routes, Taking Down Teams for Hours

Microsoft's automated network maintenance system contained a bug that incorrectly expanded the scope of a routine maintenance request, causing it to remove IP routes from unintended devices and severing a West US Azure datacenter from Microsoft's global network for nearly five hours, knocking out Teams, SharePoint, OneDrive, and 13+ other cloud services across North America.

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