Troubleshooting Authentication / Log in Failure with Systems that Require Two-Step Login

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Example of an Authentication Failure

If you receive an error like: Authentication failure:  Invalid username or password after you've correctly entered in your NetID and password, your account may be locked out of Duo Security two-step login. This can happen with any system that requires two-step login.

Screenshot showing an authentication error while authenticating

Please call 2-9800 or submit a service ticket using the link below so that a Duo Administrator can unlock your account. 

Ensure that your default device is available to you when you log in and, if necessary, update your Duo settings so that you have a default device available.

This Content Last Updated:
01/23/2026

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Estimated Read Time:
1 minutes
This Content Last Updated:
01/23/2026