Outage in Cisco Duo

SMS delivery issue to T-Mobile US

Resolved Minor
March 22, 2023 - Started about 2 years 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 have identified a third-party issue causing SMS failures to T-Mobile US around 23:05 GMT for all deployments and are currently monitoring for updates. 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 about 2 years ago - at 03/22/2023 01:39AM

The issues with SMS delivery delays to T-Mobile in the US are fully resolved and all services are now fully functional.

MONITORING about 2 years ago - at 03/22/2023 12:37AM

We are observing a recovery in SMS delivery delays to T-Mobile in the US.
We will continue to monitor the issue and will post any updates when the incident is considered fully resolved.
Please check back here or subscribe here for further updates.

IDENTIFIED about 2 years ago - at 03/22/2023 12:21AM

We have identified a third-party issue causing SMS failures to T-Mobile US around 23:05 GMT for all deployments and are currently monitoring for updates.
Please check back here or subscribe to updates for any changes.

INVESTIGATING about 2 years ago - at 03/22/2023 12:20AM

We have identified a third-party issue causing SMS failures to T-Mobile US around 23:05 GMT for all deployments and are currently monitoring for updates.
Please check back here or subscribe to updates for any changes.

Latest Cisco Duo outages

All Deployments: Duo SMS Passcode Authentication Failures for US region - 21 days ago
All Deployments: Duo Phone Call Authentication Failures for India - about 1 month ago
All Deployments: Duo Phone Call Authentication Failure for US Region - about 1 month ago
All Deployments: Admin Panel Login Issues - 3 months ago
All Deployments: Core Authentication Service, Admin Panel logins, Device Management Portal, Risk-based Authentication, and Telephony Authentication - 3 months ago

All Your Service Status Pages in One Dashboard

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 · 4000 services available

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