Users experience slow loading speeds or are unable to access SharePoint Online sites

Title: Users experience slow loading speeds or are unable to access SharePoint Online sites

User impact: Users experienced slow loading speeds or were unable to access SharePoint Online sites.

Final status: We’ve completed the extended monitoring period and confirmed the restoration of the previous version of the network infrastructure configuration did resolve the issue. Our monitoring telemetry continues to indicate that service availability is healthy, and customers have confirmed mitigation.

Scope of impact: Impact was specific to some users who were served through the affected infrastructure.

Start time: Tuesday, April 23, 2024, at 9:00 PM UTC

End time: Thursday, April 25, 2024, at 3:00 AM UTC

Root cause: A recent feature update to internal network infrastructure configurations caused increased network latency, which resulted in slow loading speeds or access issues for SharePoint Online sites.

Next Steps:
– We’re reviewing our safe deployment procedures to identify any areas of improvement to better prevent issues like this from occurring in the future.
– For a more comprehensive list of the next steps and actions, please refer to the Post Incident Report document.

We’ll provide a final Post-Incident Report within 5 business days.