Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center

A post-incident report has been published.

A post-incident report has been published.

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may have been unable to access or experience delays accessing the Microsoft 365 admin center Final status: We’ve validated via our monitoring telemetry that service has been restored. Scope of impact: Admins hosted in US Central attempting to access the Microsoft 365 admin center may have been impacted. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC End Time: Thursday, April 2, 2026, at 10:33 PM UTC Preliminary root cause: A subset of infrastructure in the Central US datacenter entered a degraded state, resulting in disruptions to request handling. Next steps: - We’re continuing our analysis of the underlying systems to understand the conditions that led to this issue and to implement safeguards that help prevent recurrence. We'll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days.

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may be unable to access or experience delays accessing the Microsoft 365 admin center Current status: Following our recent mitigation efforts to reroute traffic away from the affected systems, service stability has been restored. We’re continuing to closely monitor service telemetry to confirm full remediation and ensure the service remains healthy. Scope of impact: Admins hosted in US Central attempting to access the Microsoft 365 admin center may be impacted. This information may be updated as our investigation continues. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC Preliminary root cause: A subset of infrastructure in the Central US datacenter entered an unexpected degraded state, resulting in disruptions to request handling. Next update by: Thursday, April 2, 2026, at 11:30 PM UTC

We've successfully rerouted traffic away from the affected systems and we're reviewing service telemetry to confirm overall service health. We’ll provide additional updates as we continue monitoring the environment. This quick update is designed to give the latest information on this issue.

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may be unable to access or experience delays accessing the Microsoft 365 admin center Current status: We’ve identified an issue affecting a portion of the service and are actively mitigating impact by rerouting traffic away from affected systems. This action is helping to stabilize the service while we continue investigating the underlying issue. We’re closely monitoring service health as these changes take effect and will provide further updates as more information becomes available. Scope of impact: Admins hosted in US Central attempting to access the Microsoft 365 admin center may be impacted. This information may be updated as our investigation continues. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC Preliminary root cause: A subset of infrastructure in the Central US datacenter entered an unexpected degraded state, resulting in disruptions to request handling. Next update by: Thursday, April 2, 2026, at 11:00 PM UTC

We’ve identified an issue affecting a portion of the service that is resulting in intermittent impact and inconsistent request processing. To help reduce customer impact, we’re actively managing service traffic and may temporarily remove affected components from service while we continue our remediation efforts. We’ll provide further updates as progress continues. This quick update is designed to give the latest information on this issue.

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may be unable to access or experience delays accessing the Microsoft 365 admin center Current status: We completed a restart of all affected infrastructure, however; this action did not fully resolve the issue. We’ve observed that error rates are starting to decrease but remain above normal levels. We’re reviewing recent changes made in the environment to determine whether a change could be contributing to the issue. Scope of impact: Impact is primarily focused in the Central US region, any admin located in that region may be unable to access the admin center. This information may be updated as our investigation continues. Preliminary root cause: A subset of infrastructure in the Central US datacenter entered an unexpected degraded state, resulting in disruptions to request handling. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC Next update by: Thursday, April 2, 2026, at 10:30 PM UTC

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may be unable to access or experience delays accessing the Microsoft 365 admin center Current status: We’ve successfully restarted a portion of the affected infrastructure and are seeing improvements to service health as those systems recover. We’re continuing mitigation efforts to restore all remaining impacted infrastructure and are closely monitoring the environment to ensure service stability. Scope of impact: Impact is primarily focused in the Central US region, any admin located in that region may be unable to access the admin center. This information may be updated as our investigation continues. Preliminary root cause: A subset of infrastructure in the Central US datacenter entered an unexpected degraded state, resulting in disruptions to request handling. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC Next update by: Thursday, April 2, 2025, at 10:00 PM UTC

Title: Central US admins may be unable to access or experience delays accessing the Microsoft 365 admin center User impact: Admins may be unable to access or experience delays accessing the Microsoft 365 admin center Current status: Our investigation identified a subset of infrastructure in the Central US datacenter that entered a degraded state. We’re conducting targeted restarts in an effort to restore expected service. We’re monitoring the results closely and will share additional updates as more information becomes available. Scope of impact: Impact is primarily focused in the Central US region, any admin located in that region may be unable to access the admin center. This information may be updated as our investigation continues. Start Time: Thursday, April 2, 2026, at 6:30 PM UTC Next update by: Thursday, April 2, 2025, at 9:30 PM UTC

We are actively reviewing service telemetry data to identify the source of the issue. We’ll provide additional updates as more information becomes available. This quick update is designed to give the latest information on this issue.

Title: Users may be unable to access or have delays accessing the Microsoft 365 admin center User impact: Users may be unable to access or have delays accessing the Microsoft 365 admin center Current status: We're investigating reports of an issue in which users may be unable to access or have delays accessing the Microsoft 365 admin center. We are reviewing service telemetry and available information to determine if there is an issue happening and we'll update this message shortly with our latest findings. Scope of impact: Any users attempting to access the Microsoft 365 admin center may be impacted. Next update by: Thursday, April 2, 2025, at 9:00 PM UTC