Tuesday, December 9, 2025

Microsoft investigates Copilot outage affecting customers in Europe


Microsoft is working to mitigate an ongoing incident that has been blocking customers in Europe from accessing the corporate’s AI-powered Copilot digital assistant.

Moreover, some customers who can entry the affected service might expertise degraded performance with particular options.

“We’re investigating a difficulty through which customers in the UK could also be unable to entry Microsoft Copilot, or expertise degraded performance with some options,” Microsoft mentioned when it acknowledged the difficulty one hour in the past.

After reviewing service monitoring telemetry to isolate the basis reason behind the outage, Microsoft added that the incident was attributable to a capability scaling difficulty that’s now being addressed.

“Indications from service monitoring telemetry recommend an surprising enhance in site visitors has resulted in influence. We’re persevering with to research additional to find out the subsequent steps required,” Microsoft mentioned.

“We have recognized a difficulty impacting service autoscaling to satisfy demand. We’re manually scaling capability to enhance service availability, and we’re monitoring this carefully to make sure the anticipated final result is achieved.”

In response to a service alert (CP1193544) seen by BleepingComputer, the outage might influence any person trying to entry Microsoft Copilot inside the UK or Europe.

Microsoft can also be monitoring a separate incident (DZ1193516) inflicting some admins to expertise errors when accessing Microsoft Defender for Endpoint options, together with system stock and menace analytics. Whereas it has but to share what number of customers are affected, the difficulty has been tagged as an incident within the admin heart, a flag often designating service issues with vital person influence.

One week in the past, Microsoft additionally mitigated an outage that blocked entry to some Defender XDR portal capabilities, together with menace looking alerts.

Replace December 09, 07:54 EST: Microsoft has recognized a separate difficulty behind the Copilot incident that’s inflicting load-balancing issues and additional including to the general influence.

“We’ve recognized a separate difficulty affecting load balancing, which can also be contributing to the general influence. We’re making modifications to our load balancing guidelines to supply aid. In parallel, we’re persevering with to work on rising capability to satisfy demand,” Microsoft mentioned.

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