Productivity
Microsoft 365
Microsoft 365 is the subscription suite covering Word, Excel, PowerPoint, Outlook, Teams, and OneDrive, used by over 400 million people in homes and workplaces worldwide.
What is Microsoft 365?
Microsoft 365 — the successor to Office 365, which itself succeeded the box-software Microsoft Office — is the productivity suite that hundreds of millions of people use daily for work, school, and personal organisation. Word, Excel, PowerPoint, Outlook, Teams, OneNote, and SharePoint are bundled under the subscription umbrella, delivered as native desktop apps and web-based counterparts that run in the browser without installation. For enterprise customers, Microsoft 365 has become so deeply embedded in workflows that its availability is effectively a prerequisite for organisational function.
The shift to cloud-delivered office software brought enormous advantages in collaboration — real-time co-authoring, automatic save, and cross-device access — while creating a new category of risk: subscription authentication failures. Microsoft 365 applications periodically verify the user's active subscription through Azure Active Directory (now called Entra ID), and if that verification fails during an outage, applications may enter a read-only mode or refuse to open entirely. For Outlook in particular, Exchange Online backend issues can halt email flow for entire organisations, making the service's reliability a business continuity concern rather than an inconvenience.
Microsoft 365 outages manifest across an unusually wide surface area. Exchange Online failures delay or queue inbound email and prevent sending. Teams goes offline or loses calling and meeting functionality independently of email. SharePoint and OneDrive document access fails when storage backends are degraded. Excel and Word on desktop may lose connection to cloud-saved files, reverting to a local-save-only mode. Authentication through Azure Entra can block sign-in to all Microsoft services simultaneously. The Microsoft 365 Admin Center — used by IT administrators to diagnose problems — can itself be unavailable during major incidents, compounding the difficulty of incident response.
Outage.gg tracks Microsoft 365 service status in real time using community reports from users across web, desktop, and mobile. If Outlook is down, Teams is offline, or Office apps are not activating, the live status page shows current impact.
Common Microsoft 365 Problems
Issues users most frequently report when Microsoft 365 is having problems.
Login failures
Players are unable to sign in, receiving authentication errors or being stuck on loading screens.
Matchmaking problems
Unable to find or join matches, long queue times, or errors when trying to connect to game servers.
Disconnections mid-session
Getting unexpectedly kicked from active sessions, losing in-game progress or items.
In-game store & purchases
Cannot load the in-game store, complete purchases, or received items are not appearing in inventory.
Frequently Asked Questions
Common questions about Microsoft 365 outages and server status.
You can check the live Microsoft 365 server status at outage.gg/services/microsoft-365. The page shows real-time community-submitted outage reports, an hourly trend chart, and the current health status.
Microsoft 365 can stop working for a number of reasons including scheduled maintenance windows, unexpected server failures, network infrastructure problems, or DDoS attacks. Check the live status page on Outage.gg for the latest community reports to see if others are experiencing the same issue.
Go to outage.gg/services/microsoft-365 and click the "Report an Issue" button. Your report is counted immediately and helps confirm whether a problem is widespread. Reports from multiple users trigger a status change visible to everyone watching the page.
Click the "Notify Me" bell button on the Microsoft 365 status page at outage.gg/services/microsoft-365. Create a free account and we will send you an email the moment Microsoft 365 comes back online — no app download required.
Many services maintain official status pages with planned maintenance notices. Outage.gg aggregates real-time community-reported outages which often surface faster than official channels.
Related Services
Other services you might be tracking alongside Microsoft 365.
