Outage in Cisco Duo

All Deployments: Duo SMS Passcode Authentication Failures for US region

Resolved Minor

April 22, 2025 - Started 1 day ago - Lasted about 1 hour
Official incident page

Need to monitor Cisco Duo outages?
Stay on top of outages with IsDown. Monitor the official status pages of all your vendors, SaaS, and tools, including Cisco Duo, and never miss an outage again.
Start Free Trial

Outage Details

We are currently investigating an issue causing intermittent SMS delivery failures in the US region. While we investigate this, please use alternate authentication methods such as Duo Push, Duo Mobile Passcodes, Hardware Token etc. to login to your Duo-protected integrations. Please check back here or subscribe to updates for any changes.

Components affected

Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery

Latest Updates ( sorted recent to last )

RESOLVED 1 day ago - at 04/22/2025 03:05PM

After continued monitoring of the third-party carrier's status, the issue causing intermittent SMS delivery to the US region is resolved.

MONITORING 1 day ago - at 04/22/2025 02:40PM

We have identified the issue causing intermittent SMS delivery failures in the US region to be caused by a third party carrier. We are monitoring the carrier's status at this time.

INVESTIGATING 1 day ago - at 04/22/2025 02:18PM

We are currently investigating an issue causing intermittent SMS delivery failures in the US region.

While we investigate this, please use alternate authentication methods such as Duo Push, Duo Mobile Passcodes, Hardware Token etc. to login to your Duo-protected integrations.

Please check back here or subscribe to updates for any changes.

Latest Cisco Duo outages

All Deployments: Duo Phone Call Authentication Failures for India - 21 days ago

All Deployments: Duo Phone Call Authentication Failure for US Region - 23 days ago

All Deployments: Admin Panel Login Issues - about 2 months ago

All Deployments: Core Authentication Service, Admin Panel logins, Device Management Portal, Risk-based Authentication, and Telephony Authentication - 2 months ago

Multiple Deployments: Duo SSO Authentication Failures for some customers - 2 months ago

Tired of not knowing when third party vendors are down?

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 3962 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook