Microsoft 365 Service Disruption – November 12, 2026

Microsoft is experiencing widespread service disruptions impacting Outlook, Exchange Online, Teams, Copilot, and other Microsoft 365 services.

Microsoft has identified that a portion of its cloud infrastructure is experiencing an unexpected, elevated load and spike in traffic across multiple regions, leading to systemic loading and gateway connectivity errors. Engineers are currently reviewing the specific type of service traffic spike to determine if it stems from a broader anomaly or regression.

Update: While Microsoft continues to experience service outage, WSU service team is continuing to work through restarting and validating the affected servers to safely return them to service, exploring opportunities to expedite this.

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