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What to do if you receive errors in the Duo Mobile app, including supported OS versions and how to update iOS/Android and Duo Mobile.
Learn what Duo Verified Push (Number Challenge) is and how to approve a login with it.
This article lists the available devices that can be used for MFA.
What to do if Microsoft prompts you to set up Microsoft Authenticator shortly after activating Duo MFA.
Explains where Duo multi-factor authentication works internationally and why access may be blocked in certain countries.
This article explains why you may see a message saying Duo Desktop needs permission to use your local network and shows you simple steps to continue signing in or fix the issue.
A guide for basic post-enrollment MFA account maintenance.
This article explains what to do if you do not have a smart phone and want to use MFA.
How to address "Your two-factor account is disabled. Contact an administrator for assistance." messages when logging in using Duo.