Microsoft Teams Outage History

The incident primarily affected Canada-based Microsoft Teams users trying to access Microsoft 365 services, with Exchange Online connectivity problems that could prevent login or cause loading errors in Outlook and related apps. The outage began at 8:21 PM UTC and was resolved by 8:46 PM UTC, lasting about 25 minutes. Microsoft 365's status page posted two updates during the event, noting a Canada-focused issue and later restoring normal service. The disruption represented degraded access rather than a full global outage and was localized to the Canadian region.

The Microsoft Teams outage affected macOS and mobile clients, preventing sign-in and access for many users. Reports described loading screens, sign-in failures, and disconnections across North America, including Canada (Toronto, Montreal, Barrie, Guelph) and the United States (e.g., New York area).

The outage began at 4:37 PM UTC and was resolved by 5:39 PM UTC, lasting about 1 hour and 2 minutes. StatusGator detected the issue at Mar 3, 2025 4:37 PM UTC, ahead of any official acknowledgment from Microsoft Teams. There were no official status updates posted by Microsoft Teams during the incident.

Some users experienced issues with one or more Microsoft 365 services, notably Microsoft Teams and Exchange Online. The incident began at 9:56 PM UTC when the status moved to a degraded state. Microsoft attributed the impact to a recent code change in a portion of the service infrastructure and reverted the change while monitoring health telemetry. The issue persisted for about 2 hours and 2 minutes as remediation was applied.

An issue impacting Microsoft Teams and Microsoft 365 services in the Japan region began at Jan 23, 2025 5:01 AM UTC and was resolved by Jan 23, 2025 5:47 AM UTC. The incident caused degraded access for users in Japan and was contained to that region.

The status page indicated investigators were looking into a potential problem and that an update would be provided within 30 minutes.