Microsoft 365 Alert – Service Degradation – OneDrive for Business – Some users may experience intermittent access issues in OneDrive for Business – RESOLVED

29/01/2025 10:10:00 AM

NHSmail Reference: INC48326691

Microsoft Reference: OD990244

Issue Status: RESOLVED

Issue Description: Some users may experience intermittent access issues in OneDrive for Business.

More Info: Affected admins and users may also be unable to upload photos, and they may inadvertently see initials or a people icon instead of the user’s profile photo.

Final Update 31/01/2025 12:23:00 PM Microsoft have successfully redirected traffic to alternate infrastructure and deployed a supplementary fix to the affected environment, and confirmed after a monitoring period that impact has been remediated.

Scope of impact: : Impact was specific to any admin or user served through or located in the affected infrastructure.

Root cause: An unexpected increase in traffic caused a section of infrastructure, that facilitates access to OneDrive for Business, to perform below acceptable performance thresholds and cause impact.

Next Steps: Microsoft are analyzing performance data and trends on the affected infrastructure to help prevent this problem from happening again.

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