Cisco Duo Outage History

Cisco Duo experienced a service incident where the AI Assistant feature stopped functioning across all US deployments. The issue was classified as minor and lasted approximately 5 minutes. The incident was under investigation with teams working to restore the AI Assistant functionality.

Cisco Duo experienced authentication failures on the DUO57 server affecting the Core Authentication Service for 2.8 hours. Users encountered limited authentication failures during this period. The issue was identified, fixed, and full functionality was restored after monitoring confirmed system stability.

Cisco Duo experienced an 8.5-hour service incident where EU administrators were unable to access the AI Assistant for the first time, while existing users could continue using the service normally. The issue was identified as affecting only first-time access attempts in the EU region and has been fully resolved with normal functionality restored.

Cisco Duo experienced a 20-minute incident where EU administrators were unable to access the AI Assistant for the first time, while existing users could continue using the service normally. The issue affected multiple Duo components (DUO3, DUO38, DUO47, DUO48, DUO57, DUO70) related to AI assistance functionality. The incident was classified as minor and has been resolved.

Cisco Duo experienced a 14-minute service degradation affecting desktop authenticator enrollments, where a subset of customers encountered intermittent delays or failures when trying to enroll desktop authenticators. The Admin Panel was impacted during this incident. The issue was resolved through mitigation actions, and all services returned to normal operation while core authentication, SSO, and delivery services remained fully functional throughout the incident.

Cisco Duo experienced elevated authentication latency for 1.1 hours, causing slower-than-normal response times and degraded performance during login attempts while authentication requests continued to succeed. The Core Authentication Service was affected, impacting customers with delayed login experiences. The issue was resolved through mitigation steps that improved authentication performance and restored normal service levels.

Cisco Duo experienced SMS delivery failures affecting all customers in the US region due to carrier issues, preventing users from receiving SMS passcodes for authentication. The incident impacted SMS message delivery while other authentication methods like Duo Push remained functional. The SMS delivery issue was resolved after 2.7 hours of working with service providers to restore normal functionality.

Cisco Duo experienced VoIP phone call authentication failures across all US region deployments for 4.2 hours. Users were unable to authenticate via phone calls but could use alternative methods like Duo Mobile Push and SMS passcodes. The issue was resolved and VoIP authentication returned to normal operation with sustained success rates.

Cisco Duo experienced VOIP authentication failures affecting all US region deployments for 3.3 hours. Users were unable to authenticate via phone calls and were advised to use alternative methods like Duo Mobile Push or SMS passcodes. The service was restored to normal operation with sustained success rates observed.

A major power and connectivity outage at a third-party data center in the UAE caused a 39-hour service outage affecting Cisco Duo's DUO81 deployment, resulting in elevated error rates and connectivity issues for users in the region. Due to persistent infrastructure instability, Cisco initiated its Disaster Recovery process to migrate affected customers and critical services away from the UAE region. The outage was resolved by successfully migrating all impacted customers to an alternative Duo deployment, restoring full service functionality.