Unable to access one or more Microsoft 365 services
Issue ID: MO888473
Affected services: Microsoft 365 suite
Status: Investigating
Issue type: Advisory
Start time: Sep 12, 2024 at 8:27 AM EDT
User impact
Users may be unable to access one or more Microsoft 365 services.
Scope of impact
Impact is specific to a subset of users who are accessing the service from the US.
Current status
Sep 12, 2024 at 8:28 AM EDT
We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 30 minutes.
Users may have been unable to access one or more Microsoft 365 services
Issue ID: MO888473
Affected services: Microsoft 365 suite
Status: Service restored
Issue type: Incident
Start time: Sep 12, 2024 at 7:46 AM EDT
End time: Sep 12, 2024 at 9:14 AM EDT
User impact
Users may be unable to access one or more Microsoft 365 services.
More info
Impacted Microsoft 365 services and applications included, but were not limited to:
- Microsoft Teams
- Exchange Online
- SharePoint Online
Scope of impact
Impact was specific to a subset of users who are attempting to access the service from the North America region.
Root cause
A third-party Internet Service Provider (ISP) made a change within their managed-environment which resulted in impact.
Next steps
- We're working with the third-party ISP to better understand the issue, and develop improved resiliencies where possible.
This is the final update for this incident.
Current status
Sep 12, 2024 at 10:31 AM EDT
After an extended period of monitoring our network telemetry, we've confirmed the issue is now resolved.
Users may be unable to access one or more Microsoft 365 services
Issue ID: MO888473
Affected services: Microsoft 365 suite
Status: Service degradation
Issue type: Incident
Start time: Sep 12, 2024 at 8:27 AM EDT
More info
Impacted Microsoft 365 services and applications include, but aren't limited to:
- Microsoft Teams
- Exchange Online
- SharePoint Online
Scope of impact
Impact is specific to a subset of users who are attempting to access the service from the North America region.
Current status
Sep 12, 2024 at 9:50 AM EDT
We've worked with the third-party Internet Service Provider (ISP) and confirmed that a change within their managed-environment resulted in impact. The ISP has reverted the change and we're now seeing signs of recovery. We're continuing to monitor network telemetry data to ensure a full recovery.
Next update by:
Thursday, September 12, 2024 at 11:00 AM EDT
Users may be unable to access one or more Microsoft 365 services
Issue ID: MO888473
Affected services: Microsoft 365 suite
Status: Investigating
Issue type: Incident
Start time: Sep 12, 2024 at 8:27 AM EDT
More info
Impacted Microsoft 365 services and applications include, but aren't limited to:
- Microsoft Teams
- Exchange Online
- SharePoint Online
Scope of impact
Impact is specific to a subset of users who are attempting to access the service from the North America region.
Current status
Sep 12, 2024 at 8:54 AM EDT
We're reviewing network telemetry logs to identify the root cause of the issue and develop our remediation plan.
Next update by:
Thursday, September 12, 2024 at 10:00 AM EDT
History of updates
Sep 12, 2024 at 8:28 AM EDT
We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 30 minutes.