Microsoft is currently experiencing a significant outage affecting the Microsoft 365 Admin Center, rendering administrators unable to access essential management tools. This issue, which began on July 24, 2025, has persisted into the following day, marking the second such incident this week and raising concerns about the reliability of Microsoft's cloud services.
The Microsoft 365 Admin Center serves as the central hub for managing services such as Exchange Online and Teams. The current outage has left administrators unable to monitor service health, manage user accounts, or perform critical configurations, potentially halting IT operations across various organizations. Administrators attempting to log in are encountering "Runtime Error" messages, indicating a severe disruption in service availability.
Microsoft has acknowledged the problem via its service health status page, advising affected users to check for updates outside the inaccessible portal. The company is tracking the incident under MO1120879 and has not disclosed the exact number of affected users. However, reports suggest that the outage primarily impacts administrators routed through the US East region infrastructure, with a broader global reach, including Europe and Asia. Consumer services like Outlook.com remain operational, but enterprise users in the US, UK, and beyond have reported widespread access failures.
Preliminary investigations point to underperforming regional service infrastructure, causing authentication and access failures. Microsoft attributes the issue to a portion of the system not meeting expected performance thresholds, similar to past incidents involving configuration changes or routing errors. Notably, there is no evidence of cyberattacks associated with this outage, distinguishing it from prior security incidents.
In response, Microsoft recommends using alternative URLs, such as the Microsoft 365 admin center direct links or the service health dashboard, for updates. Administrators are also advised to monitor the official Microsoft 365 Status account on X (formerly Twitter) for real-time information. The company is deploying fixes and suggests clearing browser data or trying different networks as temporary workarounds.
This outage follows a pattern of disruptions in 2025, including a 19-hour global incident earlier in July linked to configuration changes. Such recurring issues underscore the vulnerabilities inherent in cloud-based infrastructures and highlight the need for robust contingency plans to mitigate the impact of future disruptions.
As of July 26, 2025, Microsoft continues its mitigation efforts, with full resolution expected soon. Businesses are advised to develop contingency plans for recurring cloud disruptions to ensure continuity of operations.
Source: CyberSecurityNews Microsoft 365 Admin Center Outage Blocks Access for Admins Worldwide
