ITCO Systems - Status Page

Microsoft Update at 11:50am

"We've begun returning a portion of the affected servers to service, and they're remaining stable so far. We’ve also shifted traffic and connections to alternative pathways wherever possible and have observed limited recovery in some regions. We've streamlined our recovery process to expedite returning the remaining affected servers to service. To further support recovery, we're implementing protective traffic management measures in a specific location to reduce load on the affected infrastructure, and we'll expand these measures to additional locations if we observe positive results. As capacity is restored, users may experience a gradual recovery as their clients reconnect to the service."

Update from Microsoft 11:03am:

"We’re continuing to pursue all available pathways to restore service, as our actions taken thus far have not provided the anticipated relief. Our investigation has found that a core process on the affected servers is becoming overwhelmed, which causes the servers to stop responding and contributes to the capacity loss. To validate a potential recovery approach, we're fully isolating a portion of our service infrastructure, restarting the affected components, and gradually reintroducing traffic to confirm our services remain stable before applying this approach more broadly. We're also analyzing traffic patterns across our entire service infrastructure and evaluating whether isolating traffic within each region may allow affected regions to recover independently.

Potentially impacted services include:
- Exchange Online
- Microsoft Teams
- SharePoint Online
- Microsoft Copilot 365
- Microsoft Defender XDR
- Microsoft Planner
- Microsoft To Do
- Microsoft Intune
- Microsoft Defender for Office 365
- Microsoft Purview: Multiple Purview services including Authorization, Auto Labelling, Data Loss Prevention (DLP), Communication Compliance, and Data Classification are impacted.
- Power BI: All users may intermittently be unable to export reports with MIP sensitivity labels to PDF in Power BI.
- Microsoft 365 Apps Admin Center: Multiple services including Cloud Update, Cloud Policy, and Inventory."

No change from Microsoft - latest update 13/11/26 9.30am

We've not identified any recent change correlated with the start of impact; however, our investigation indicates the failed health checks may originate from a specific component that's responsible for processing server health. We've taken steps to prevent additional servers from being impacted while we work to return the affected servers to service. More info under EX1550543 and MO1550821 in the Microsoft 365 admin center

Update from Microsoft at 8:58am

While we haven't identified any recent changes that correlate with the start of impact, our investigation indicates the failed health checks may originate from a specific component on the affected servers that's responsible for processing them. We're deploying a targeted change to bypass this component on a subset of servers to validate whether this restores availability, and we've taken steps to prevent additional servers from being removed from service while we work to return the affected servers to service. We're also investigating why affected servers are experiencing elevated processor usage while handling requests.

Microsoft update 8.40am 13/11/2026

"We determined the elevated load isn't driven by an increase in traffic, but by a number of servers being unexpectedly unavailable; straining the remaining infrastructure. We're working to safely return them to service".

Latest from Microsoft at 8.15am 13/11/2026

"We're aggressively pursuing all pathways to reduce impact. We've paused all deployments, we're moving additional traffic off the affected infrastructure, and we're restarting affected servers to return them to service"

Latest Notification from Microsoft:

We've begun redistributing connection traffic across our broader worldwide infrastructure to help balance the load. More info under EX1550543 and MO1550821 in the Microsoft 365 admin center, as well as https://status.cloud.microsoft if the admin center is not available to you.