Outage in Cisco Duo

SMS and MMS Delivery Delays to and from US AT&T

Resolved Minor
August 24, 2022 - Started about 3 years ago - Lasted about 1 hour
Official incident page

Incident Report

We have detected an issue with SMS delivery for the US region with AT&T, and we are currently investigating the issue.
Components affected
Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo SSO Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo SSO Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo SMS Message Delivery Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo SSO Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo SSO Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo Core Authentication Service Cisco Duo Admin Panel Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo SMS Message Delivery Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo SMS Message Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Push Delivery Cisco Duo Admin Panel Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Core Authentication Service Cisco Duo SMS Message Delivery Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo Push Delivery Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Admin Panel Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Push Delivery Cisco Duo Phone Call Delivery Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Cloud PKI Cisco Duo SMS Message Delivery Cisco Duo Core Authentication Service Cisco Duo Phone Call Delivery Cisco Duo Phone Call Delivery Cisco Duo Admin Panel Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo SSO Cisco Duo Core Authentication Service Cisco Duo Cloud PKI Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo Cloud PKI Cisco Duo Core Authentication Service Cisco Duo Push Delivery Cisco Duo Core Authentication Service
The Status Page Aggregator Built for IT Teams

One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.

Try IsDown risk-free 14-day free trial · No credit card required
Latest Updates ( sorted recent to last )
MONITORING about 3 years ago - at 08/24/2022 02:25PM

We are continuing 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.

MONITORING about 3 years ago - at 08/24/2022 01:52PM

We have implemented a fix that has resulted in stable success rates.
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.

INVESTIGATING about 3 years ago - at 08/24/2022 01:20PM

We have detected an issue with SMS delivery for the US region with AT&T, and we are currently investigating the issue.

Latest Cisco Duo outages

[All Deployments] Duo Desktop not being recognized on Windows 11 24H2/25H2 - 1 day ago
[DUO34] Full Deployment Outage - 9 days ago
Entra ID Sync Issue Affecting Certain European Deployments - 18 days ago
[Multiple Deployments] Administrators unable to access the Duo AI Assistant for the first time - 20 days ago
[Multiple Deployments] Admin Panel Login Failures - about 1 month ago

The Status Page Aggregator Built for IT Teams

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 · 4522 services available

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