Possibly this as seen on the outages list? https://www.bleepingcomputer.com/news/microsoft/microsoft-dns-outage-impacts... Microsoft is suffering an ongoing DNS outage affecting customers worldwide, preventing them from logging into company networks and accessing Microsoft Azure and Microsoft 365 services. According to reports on DownDetector <https://downdetector.com/status/windows-azure/> and social <https://www.reddit.com/r/sysadmin/comments/1oj86h5/azure_portal_down/> networks <https://www.reddit.com/r/sysadmin/comments/1oj8sgk/so_how_much_of_microsoft_is_down/>, this incident began impacting Microsoft's services almost 1 hour ago and is currently causing server and website connection issues for tens of thousands of users. Some of those affected are having issues accessing the Intune and Azure portals, as well as the Exchange admin center, while others report that Microsoft's Azure Front Door Content Delivery Network (CDN) service is also down. On Wed, Oct 29, 2025 at 10:38 AM Victor Kuarsingh via NANOG < nanog@lists.nanog.org> wrote:
All,
Anyone know what caused the large impact in the US at around noon ET today?
regards,
Vector K _______________________________________________ NANOG mailing list
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