Outage in Microsoft 365
Users may experience issues when trying to access services that require Multi-Factor Authentication (MFA)
Resolved Minor
February 23, 2026 - Started 1 day ago
- Lasted about 3 hours
Incident Report
Summary AI Generated
Microsoft 365 users in North America experienced 504 gateway timeout errors when trying to access services requiring Multi-Factor Authentication (MFA), preventing sign-ins to Office 365, Teams, and other Microsoft 365 applications. Users reported being unable to connect to Teams calls, access MS365 on the web, login to 365 apps, and issues with SSO to enterprise applications, with some experiencing problems since February 21st. The incident lasted 2.7 hours while Microsoft investigated Microsoft Entra sign-in logs, network telemetry, and third-party authentication dependencies to resolve the authentication issues.
Title: We're looking into a potential problem impacting Microsoft 365 services
User impact: We're checking for potential impact to your users.
Current status: We're investigating a potential issue with the Microsoft 365 service and checking for impact to your organization. We'll provide an update within 30 minutes.
Components affected
Microsoft 365 suiteNeed to monitor Microsoft 365 outages?
- Monitor all your external dependencies in one place
- Get instant alerts when outages are detected
- Be the first to know if service is down
- Show real-time status on private or public status page
- Keep your team informed
Latest Updates ( sorted recent to last )
1 day ago - at 02/23/2026 04:30PM
Title: Users may experience issues when trying to access services that require Multi-Factor Authentication (MFA)
User impact: Some users may experience issues accessing Microsoft 365 services, particularly during sign‑in or authentication.
Current status: We’re reviewing Microsoft Entra sign‑in logs and related network telemetry following reports of 504 gateway timeout errors affecting sign‑in using Multi-Factor Authentication (MFA) for Microsoft 365 services. In parallel, we're also analyzing third-party authentication dependencies and interactions to better understand the potential source of the issue.
Scope of impact: This issue may affect any user within your organization leveraging MFA for sign-in. We've confirmed the following region(s) are impacted by this issue: North America. Additional impacted region(s) may be included as our investigation continues.
Next update by: Monday, February 23, 2026, at 5:30 PM UTC
1 day ago - at 02/23/2026 03:57PM
This quick update is designed to give the latest information on this issue.
We're investigating an issue in the North America region where users may be experiencing 504 gateway timeout errors when trying to access services that require Multi-Factor Authentication (MFA). We're reviewing Microsoft Entra logs and network telemetry signals to isolate the potential source of the issue.
1 day ago - at 02/23/2026 03:26PM
Title: Users may experience issues when trying to access services that require Multi-Factor Authentication (MFA)
User impact: Some users may experience issues accessing Microsoft 365 services, particularly during sign‑in or authentication.
Current status: We're investigating reports of impact to M365 services and we're analyzing service telemetry to identify the specific source of the issue, and any next steps to mitigate impact.
Scope of Impact: This issue may affect any user within your organization. We've confirmed the following region(s) are impacted by this issue: North America. Additional impacted region(s) may be included as our investigation continues.
Next update by: Monday, February 23, 2026, at 4:30 PM UTC
1 day ago - at 02/23/2026 02:53PM
Title: We're looking into a potential problem impacting Microsoft 365 services
User impact: We're checking for potential impact to your users.
Current status: We're investigating a potential issue with the Microsoft 365 service and checking for impact to your organization. We'll provide an update within 30 minutes.
source IsDown
Possible Outage Indicated by User Reports
Reports started 13 minutes before official outage was reported
Latest Microsoft 365 outages
Some users may experience failures or timeouts while accessing Microsoft Copilot (Microsoft 365) - 11 days ago
Some users may be unable to access their mailbox in Exchange Online via any connection method - 14 days ago
Some users in the North America region may be unable to access the Microsoft 365 admin center - 14 days ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6020 services available
Integrations with
