Microsoft incident · via Microsoft Copilot

Users may be unable to access the Microsoft Copilot desktop or web app

Minor Resolved

Microsoft experienced a minor incident on June 1, 2026 affecting Microsoft Copilot and Microsoft 365 Copilot Chat Status, lasting 3h 40m. The incident has been resolved; the full update timeline is below.

Started
Jun 01, 2026, 01:55 PM UTC
Resolved
Jun 01, 2026, 05:35 PM UTC
Duration
3h 40m
Detected by Pingoru
Jun 01, 2026, 01:55 PM UTC

Affected components

Microsoft CopilotMicrosoft 365 Copilot Chat Status

Update timeline

  1. monitoring Jun 01, 2026, 03:53 PM UTC

    User impact: Users may be unable to access the Microsoft Copilot desktop or web app. Current status: We’re reviewing our telemetry to determine the specific impact and isolate the root cause. Next update by: Monday, June 01, 2026, at 5:00 PM UTC

  2. monitoring Jun 01, 2026, 04:33 PM UTC

    User impact: Users may be unable to access the Copilot desktop or web app. Current status: We're working on getting logs from impacted users to focus our investigative efforts to isolate the source of impact. Start time: Monday, June 01, 2026, at 1:55 PM UTC Next update by: Monday, June 01, 2026, at 5:00 PM UTC

  3. monitoring Jun 01, 2026, 04:46 PM UTC

    User impact: Users may be unable to access the Copilot desktop or web app. Current status: We've received logs from impacted users and are reviewing them to identify the root cause. We're also continuing to monitor our telemetry to determine mitigating actions we can implement in the interim as our investigation progresses. Start time: Monday, June 01, 2026, at 1:55 PM UTC Next update by: Monday, June 01, 2026, at 6:00 PM UTC

  4. monitoring Jun 01, 2026, 05:30 PM UTC

    User impact: Users may be unable to access the Copilot desktop or web app. Current status: We identified a routing issue which is sending Copilot traffic to a portion of infrastructure that is unhealthy, resulting in the access and timeout errors. We're rerouting requests to healthy infrastructure and our telemetry is starting to show service health recovery. Start time: Monday, June 01, 2026, at 1:55 PM UTC Next update by: Monday, June 01, 2026, at 6:00 PM UTC

  5. resolved Jun 01, 2026, 05:55 PM UTC

    User impact: Users may have been unable to access the Copilot desktop or web app. Final status: We've rerouted requests to healthy infrastructure and have confirmed through our telemetry that service health has recovered. Start time: Monday, June 01, 2026, at 1:55 PM UTC End time: Monday, June 01, 2026, at 5:52 PM UTC