Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Users may have been unable to access the Copilot desktop or web app – RESOLVED

02/06/2026 08:37:00 AM

NHSmail Reference: INC46840096

Microsoft Reference: CP1329665

Issue Status: RESOLVED

Issue Description: Users may have been unable to access the Copilot desktop or web app.

Final Update: 02/06/2026 08:37:00 AM Microsoft has rerouted requests to healthy infrastructure and have confirmed through their telemetry that service health has recovered.

Scope of impact: Some users attempting to utilize Microsoft Copilot may have been impacted.

Root cause: An influx of traffic was routed to a portion of infrastructure not equipped to handle the volume of requests, resulting in the access and timeout errors.

Next steps : To help identify similar issues earlier and prevent impact in the future, we’re further reviewing our automated traffic routing processes and monitoring systems.

They will provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days.

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