Updated On December 5, 2019 - 9:51am

Duo and SMS Message Delivery Issues - Resolved

Update: 11:07 a.m. — Duo's issue regarding SMS Message delivery is fully resolved and all services are now fully functional. 

If you’re still experiencing issues with this service, please contact the IT Support Center at (310) 267-HELP (4357) or h[email protected]

Update: 10:31 a.m. — Duo's telephony provider is seeing recovery on the SMS delivery degradation, and we have confirmation that users are receiving SMS passcodes successfully. We will continue to monitor the issue and post an update when the incident is considered fully resolved.


We’re getting reports that some Duo users may be experiencing issues with SMS message delivery. We’ll update when we learn more; please also see the Duo status page.

For more information, please contact the IT Support Center at (310) 267-HELP (4357) or h[email protected]

Related Information

Duo status page