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Why is Microsoft Exchange Online down today, March 16, 2026?

Are you experiencing AnyDesk and Office.com connection issues right now?

On March 16, 2026, a significant disruption affected global internet infrastructure. Multiple users reported access issues across essential enterprise services, including AnyDesk and Microsoft’s Office.com. Monitoring platforms like Downdetector reflected widespread connectivity problems. These concurrent failures point to underlying network routing complications rather than isolated application errors.

AnyDesk Network Disruptions

Users began noticing AnyDesk connectivity failures around noon. The official AnyDesk status page initially displayed normal operations. The company later acknowledged a brief network outage occurring at 2:13 PM UTC. The engineering team investigated the root cause and implemented a fix shortly after. Service stabilized by mid-afternoon.

Office.com and Microsoft 365 Problems

Access to Office.com failed for many professionals during the afternoon hours. The Microsoft Service Health dashboard initially showed no active disruptions despite user complaints. User reports indicated web portals became completely unresponsive. Downdetector registered a sharp increase in error reports across multiple cloud services simultaneously.

Exchange Online Incident EX1253275

Microsoft officially confirmed a service degradation affecting Exchange Online under incident number EX1253275. Users encountered persistent errors when attempting to access their mailboxes. The outage impacted multiple connection protocols:

  • Outlook on the web
  • Outlook desktop applications
  • Exchange ActiveSync
  • Other online connection methods

The service degradation began at 9:30 AM UTC and ended at 1:30 PM UTC. Microsoft identified a supporting network infrastructure failure as the preliminary root cause. Engineers restored service health after stabilizing the network routing. Microsoft plans to release a final post-incident report detailing the precise technical failures within five business days.