ClassLink experienced a minor incident on May 19, 2026 affecting Active Directory Integration and Google Integration and 1 more component, lasting 1d. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 19, 2026, 12:44 PM UTC
We are currently investigating intermittent DUO MFA authentication errors affecting some users at login. Our team is actively working on a resolution and will provide updates as they become available. We apologize for the inconvenience.
- identified May 19, 2026, 03:06 PM UTC
We have identified the issue and we are working on implementing a fix for the DUO authentication errors.
- identified May 19, 2026, 08:42 PM UTC
Update: We are actively working with DUO support on this issue. DUO has identified a potential cause and we are collaborating on a resolution. We will post updates as more information becomes available.
- monitoring May 20, 2026, 11:32 AM UTC
The DUO MFA errors appear to have subsided. We are awaiting confirmation from DUO that a fix has been successfully applied and will post a final update once confirmed.
- resolved May 20, 2026, 01:41 PM UTC
The DUO MFA authentication errors have been resolved. Thank you for your patience while we worked with DUO to resolve the issue.