Microsoft Azure and Microsoft 365 DNS outage causing access failures
Service Disruption
Summary
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Microsoft is facing an ongoing DNS outage that is disrupting Azure and Microsoft 365 access worldwide, leaving customers unable to log in or reach key admin portals. The breakage is affecting Azure Portal, Microsoft 365 admin center, Intune, Exchange admin center, and Azure Front Door CDN access. Microsoft says it has taken action to restore portal access and is still working to isolate the cause.
Related Happenings
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Service Disruption
H score25
First: 02.06.2026 20:02
Last: 02.06.2026 20:02
Sources 1
About this happening:
Microsoft is addressing a **widespread Exchange Online service disruption** that is delaying and failing email delivery for customers across **North America** and **Germany**. The...
Microsoft Exchange Online mail flow disruption
Service DisruptionAbout this happening: Microsoft is addressing a **widespread Exchange Online service disruption** that is delaying and failing email delivery for customers across **North America** and **Germany**. The...
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Service Disruption
H score25
First: 01.06.2026 17:36
Last: 01.06.2026 17:36
Sources 1
About this happening:
Microsoft is investigating an ongoing **service disruption** that is blocking **Teams** and **Office for the web** users from opening files, disrupting access to shared documents...
Microsoft Teams and Office for the web file-opening outage
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Service Disruption
H score25
First: 01.06.2026 14:40
Last: 01.06.2026 14:40
Sources 1
About this happening:
**Microsoft** is dealing with an **ongoing outage** that is blocking some users from setting up **multi-factor authentication (MFA)** and accessing **My Sign-Ins**. Affected users...
Microsoft My Sign-Ins MFA outage
Service DisruptionAbout this happening: **Microsoft** is dealing with an **ongoing outage** that is blocking some users from setting up **multi-factor authentication (MFA)** and accessing **My Sign-Ins**. Affected users...
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Service Disruption
H score13
First: 19.05.2026 14:22
Last: 19.05.2026 14:22
Sources 1
About this happening:
Microsoft's **Windows Update** is failing in **restricted network environments** after the **January 2026 optional non-security preview updates**, leaving affected systems unable...
Microsoft Windows Update restricted-network download failure
Service DisruptionAbout this happening: Microsoft's **Windows Update** is failing in **restricted network environments** after the **January 2026 optional non-security preview updates**, leaving affected systems unable...
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Service Disruption
H score0
First: 13.05.2026 14:53
Last: 13.05.2026 14:53
Sources 1
About this happening:
The **Windows 365** service update has introduced a **configuration change** that is blocking **Office downloads and installs** for some customers, disrupting access on cloud PCs....
Microsoft Windows 365 Office installation disruption
Service DisruptionAbout this happening: The **Windows 365** service update has introduced a **configuration change** that is blocking **Office downloads and installs** for some customers, disrupting access on cloud PCs....
Timeline
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29.10.2025 18:49 2 articles · 7mo ago
Initial report: Microsoft Azure and Microsoft 365 DNS outage causing access failures
Initial DisclosureAround **16:00 UTC**, Microsoft began experiencing **DNS issues** that degraded access to core cloud services. Early effects included **Azure Portal** access failures and broader login and connectivity problems across Microsoft-managed services.
Show sources
- Microsoft: DNS outage impacts Azure and Microsoft 365 services — www.bleepingcomputer.com — 29.10.2025 18:49
- Microsoft: DNS outage impacts Azure and Microsoft 365 services — www.bleepingcomputer.com — 29.10.2025 18:49