Outage in Cisco Duo
Multiple Deployments: Duo SSO Authentication Failures for some customers
Resolved Minor
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Outage Details
Components affected
Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSO Cisco Duo SSOLatest Updates ( sorted recent to last )
We can now confirm that SSO authentications are now fully operational and the issue is resolved. We will provide an RCA as soon as it is available.
In the meantime, we highly recommend configuring multiple Duo Authentication Proxies, ideally 3, for Duo SSO for redundancy, as only customers who had a single proxy were impacted. More details on this can be found here:
https://duo.com/docs/sso#configure-your-authentication-source
https://help.duo.com/s/article/6321
We are continuing to monitor for any further issues.
We have implemented a fix and are seeing successful recovery of Duo SSO authentications for impacted customers. We will continue monitoring to ensure the issue is fully resolved.
We are investigating an issue that is causing a small number of customers to experience authentication failures when logging into applications protected by Duo SSO.
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