Microsoft 365 outage affects some European customers as Office 2021 support ends

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  Some European customers, including users in Germany and the UK, faced a Microsoft 365 outage.

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  The affected service was Global Secure Access, which customers use to connect to Microsoft 365 services.

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  Microsoft said part of its GSA infrastructure was performing below acceptable performance thresholds.

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  The company was applying traffic and performance optimizations, and the system was showing signs of recovery.

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  The outage coincided with the end of support for Office LTSC 2021.

Who

Some European Microsoft customers, including users in Germany and the UK.

What

An outage affected access to Microsoft 365 services through Global Secure Access.

When

The outage was reported on October 13, 2026.

Where

Europe, including Germany and the UK.

Why

Microsoft said a section of GSA infrastructure was performing below acceptable performance thresholds; the underlying cause was not clear.

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