A Microsoft 365 outage disrupted Outlook, Teams and Copilot on Thursday and continued into Friday business hours across Asia-Pacific, including India. Microsoft reported a partial recovery as it worked to stabilise affected servers.
The chronology below covers 24 major disruptions from 2001 to 2026, spanning Microsoft’s websites, email, gaming and cloud services. The incidents ranged from a router configuration error that took company websites offline in 2001 to failures in Azure and Microsoft 365 that disrupted work for businesses and government agencies. Microsoft reported a partial recovery on Friday as it worked to stabilise servers.
Here are selected major outages across Microsoft’s cloud, workplace and consumer services, most recent first.
Nov. 13, 2026 — A Microsoft 365 outage disrupted Outlook, Teams and Copilot on Thursday and continued into Friday business hours across Asia-Pacific, including India. Microsoft reported a partial recovery as it worked to stabilise affected servers.
Here are selected major outages across Microsoft’s cloud, workplace and consumer services, most recent first.
Nov. 12–13, 2026 — The Microsoft 365 outage disrupted access to Outlook mailboxes and affected Teams calendars, invitations and meeting scheduling. Most Teams calls, meetings and group chats remained available, Microsoft said. An earlier Teams chat outage affecting users routed through North and South America lasted 68 minutes.
Sept. 30–Oct. 1, 2026 — Azure customers in multiple regions experienced intermittent connectivity and network management failures affecting services including Azure Firewall, VPN Gateway and ExpressRoute Gateway.
Jan. 22–23, 2026 — Microsoft 365 users reported problems sending and receiving Outlook email and creating Teams chats and meetings. Microsoft said on Jan. 23 that it had restored access to its productivity suite.
Oct. 29, 2025 — A configuration change in Azure Front Door, Microsoft’s global traffic delivery service, caused errors and timeouts for Azure customers and disrupted Microsoft 365. Microsoft said it restored services later that day.
Nov. 25, 2024 — A Microsoft 365 outage disrupted Outlook and Teams, prompting thousands of user reports to outage tracker Downdetector.
Sept. 12, 2024 — Microsoft said its productivity suite recovered after a disruption that generated more than 90,000 U.S. reports for Microsoft 365 on Downdetector. The tracker also recorded a rise in reports for Azure, Teams and Xbox.
July 30, 2024 — Azure Front Door and Microsoft’s content delivery network suffered connection errors and timeouts across multiple regions. Microsoft said a network misconfiguration following its response to a denial-of-service attack caused congestion and disrupted some Microsoft 365 services.
July 18–19, 2024 — An Azure Storage failure disrupted cloud services in Microsoft’s Central U.S. region. In a separate incident on July 19, a faulty update from cybersecurity company CrowdStrike crashed an estimated 8.5 million Windows devices.
June 5–9, 2023 — Denial-of-service attacks disrupted Microsoft services including Outlook webmail. U.S. prosecutors later alleged that members of the group Anonymous Sudan were behind the attacks.
Jan. 25, 2023 — A network outage disrupted Azure, Teams and Outlook worldwide. Microsoft said it restored its cloud services that day.
July 21, 2022 — A global Teams outage disrupted the workplace messaging app for several hours. Microsoft said it restored access for most users.
April 1, 2021 — A Domain Name System (DNS) problem caused intermittent access failures for Azure, Dynamics and Xbox Live for about an hour.
March 15, 2021 — An Azure Active Directory outage prevented some users from signing in to Teams, Office, Dynamics, Xbox Live and the Azure portal.
Sept. 28–29, 2020 — An Azure Active Directory failure disrupted sign-ins to Microsoft and third-party services that relied on it, including Teams and OneDrive.
May 2, 2019 — A DNS configuration problem disrupted Azure connectivity and affected cloud computing, storage and database services.
Sept. 4, 2018 — Severe weather knocked out cooling at an Azure data centre in Texas, disrupting dozens of cloud services.
March 21, 2017 — Users reported problems with Outlook.com, Azure, Office 365, Skype and Xbox Live during a disruption across Microsoft’s online services.
Nov. 18, 2014 — An Azure Storage performance update reduced capacity and interrupted services including Azure Virtual Machines.
Feb. 22, 2013 — An expired security certificate disrupted secure connections to Azure Storage worldwide.
Feb. 29, 2012 — A leap-day software bug prevented parts of Windows Azure from generating valid security certificates, disrupting cloud computing services.
Sept. 8–9, 2011 — A DNS problem disrupted Office 365, Hotmail and SkyDrive for several hours, less than three months after Microsoft launched Office 365.
October 2009 — A server failure at Microsoft’s Danger unit disrupted T-Mobile’s Sidekick service. T-Mobile warned that some customers could lose contacts, calendar entries and photos stored on the servers.
December 2007–January 2008 — Xbox Live users experienced intermittent sign-in, account recovery and matchmaking problems over the holiday period. Microsoft cited record sign-ups and usage.
Jan. 24, 2001 — A router configuration change disrupted Microsoft’s domain-name infrastructure, making Microsoft.com, MSN.com and other company websites unreachable.