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Cisco Duo Outage History

Every past Cisco Duo outage tracked by IsDown, with detection times, duration, and resolution details.

There were 263 Cisco Duo outages since December 2018. The 50 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Major July 24, 2025

July 2025: GB VoIP Failures

Detected Jul 24, 2025 9:44 AM EDT · Resolved Jul 24, 2025 8:47 PM EDT · Duration about 11 hours