Microsoft Reporting Outlook and Teams Outages Nationally

Microsoft is reporting that most users have been reporting issues accessing Exchange Online—a cloud-based email server—and Microsoft Teams calendars.

This Microsoft outage is affecting most users at UWM.

Nov 25, 2024, 10:02 AM CST

The patch has deployed 90 percent, and according to telemetry, service availability is recovering. An estimated time to completion of the fix is not yet available. Targeted server restarts are underway to address routing service issues, with priority on customers who are currently in business hours or beginning their business day. This quick update is designed to give the latest information on this issue

11/25/2024 10:15 AM - From Microsoft: The fix which is addressing impact is continuing to deploy and has now reached 98 percent of the affected environment. Regarding recovery, we’ve encountered delays in our targeted restarts; however, we’re identifying alternative options to expedite recovery of the affected infrastructure.

11/25/2024 10:44 AM - From Microsoft: We’re rerouting traffic to alternate infrastructure to expedite mitigation. In parallel, we’re resolving complications leading to the delays in targeted server restarts.

11/25/2024 11:37 AM - From Microsoft: We’re continuing to reroute traffic to alternate infrastructure and have reinitiated targeted server restarts to ensure the fix takes effect as expected. We’re monitoring to confirm the restarts proceed successfully. We don’t yet have an estimated time to resolution; however, we’ll provide one as soon as it becomes available.

11/25/2024 1:15 PM - From Microsoft: Our mitigative actions haven’t provided relief as expected, and a portion of infrastructure remains in an unhealthy state. We determined that some of the targeted server restarts did not succeed due to processing issues, which are under investigation. We’re currently focused on spreading traffic to healthy infrastructure, and we’re seeing some recovery.

11/25/2024 1:52 PM - From Microsoft: We’re continuing to redirect traffic and apply targeted remediation to impacted servers. We’ve observed initially positive results in some areas, and we’re monitoring service health closely as our mitigation workstreams continue in parallel. We understand the significant impact of this event to your organization, we’re treating this issue with the highest priority, and we’re working to provide relief as soon as possible.

11/25/2024 2:25 PM - From Microsoft: Services are showing significant signs of restoration following our infrastructure optimizations to redistribute traffic and restart affected servers, upwards of 90 percent recovery as we continue to increase processing capability. We’re continuing to perform appropriate optimizations on the subset of remaining affected machines to resolve the issue for all users.

11/25/2024 4:09 PM - From Microsoft: We identified a change in the environment that resulted in an influx in request retries routed through affected servers. Our optimizations, which enhanced the infrastructure’s processing capabilities, continue to provide incremental relief. We’re monitoring the service and continuing our work to perform any follow-up actions or opening additional workstreams needed to fully resolve the problem. We understand the significant impact of this event to your organization, we’re treating this issue with the highest priority, and we’re working to provide relief as soon as possible.

11/25/2024 6:01 PM - From Microsoft: The service is continuing to incrementally recover. We’re forecasting that impact will be fully remediated by Monday, November 25, 2024 at 9:00 PM CST , though we’re closely monitoring our progress and will provide an updated timeline should the estimate change. Estimated time to resolve: We estimate full recovery by Monday, November 25, 2024 at 9:00 PM CST

11/25/2024 8:10 PM - From Microsoft: Our monitoring indicates that a large portion of affected users and services are seeing recovery following our mitigation efforts. We’re working on addressing the lingering regions that are still seeing impact to fully restore service availability. Estimated time to resolve: We estimate full recovery by Monday, November 25, 2024 at 9:00 PM CST

11/26/2024 4:59 AM - From Microsoft: From monitoring service telemetry, most users should now experience relief. We’ve completed our optimizations and we’re continuing our period of extended monitoring to ensure the availability remains stable.

11/26/2024 6:53 AM - From Microsoft: We’re continuing our period of monitoring service telemetry, which shows the service availability has remained healthy.