After Microsoft, Cloudflare and Claude AI face outages
What's the story
Today, November 13, has been a bad day for users of several popular internet services. Microsoft Outlook users have faced issues accessing their emails, while Cloudflare and Anthropic's AI chatbot Claude have also been affected. The simultaneous outages have led to speculation about a possible widespread internet outage. However, the problems may not be related to each other.
Service impact
Outlook's disruption is due to Microsoft's ongoing Microsoft 365 issues
Microsoft's ongoing Microsoft 365 disruption has affected Outlook and some connected third-party services, including Claude's Microsoft 365 integrations.
The company has been dealing with problems affecting its Microsoft 365 infrastructure, particularly Exchange Online. This is the service that powers Outlook's email services.
Despite these issues, there is no confirmed evidence that Cloudflare's reported infrastructure incident caused Microsoft's Outlook outage.
Service disruption
Cloudflare's reported infrastructure incident
Cloudflare, a major internet infrastructure company, reported increased error rates affecting its Durable Objects service in North America. The issue was marked as resolved on November 13.
However, the company's incident history also listed maintenance activities at several data center locations such as Chicago, Frankfurt, Boston, and Sioux Falls.
This has led to questions about Cloudflare's availability but doesn't confirm its reported infrastructure incident caused Microsoft's Outlook outage.
AI impact
Claude's service disruptions
Anthropic's Claude has also faced service disruptions, especially with its Microsoft 365 integrations.
The problem is major for users who rely on Claude to access their workplace emails, calendars, and other Microsoft 365 information.
However, this doesn't mean that the entire AI platform of Claude is down. Different services have had different operational statuses, with some features continuing to work despite issues affecting specific integrations.
Recovery efforts
Recovery measures being implemented by Microsoft
Microsoft has been working on several recovery measures, including restarting affected servers, shifting traffic to alternative infrastructure, and testing configuration changes.
The company also explored reverting a recent network configuration change that appeared to coincide with the beginning of the disruption.
However, as of now, it hasn't established a final root cause in its latest available update.
Service issues
Other Microsoft services affected by the outage
The disruption has affected several Microsoft 365 services, including Outlook, Teams, Copilot, and certain connected applications.
Users have reported difficulties accessing inboxes, signing in and sending or receiving emails on Outlook.
Some calendar-related features on Teams have also been disrupted, while some users have faced problems accessing workplace-related AI features on Copilot.