Duo - FAQ

General: If a login fails you will receive a generic login error message on the login screen which will indicate that your “Username and/or Password” are incorrect. Please keep in mind that this error message will also be shown if you do not respond to your required second factor authentication.

Recent password reset: If you have reset your password recently, please clear your browser's history and cache as that often resolves any types of login issues.

Phone change: If you have recently changed phones and are using the Duo Push option to authenticate, please reach out to techsupport@cua.edu to reactivate the Duo Mobile App.

For Cardinal Financials only: Please be certain you are connecting to Cardinal Financials from the campus network or, if off-campus, that you are connected to a Catholic University VPN.

If you are still having trouble, please email techsupport@cua.edu or contact the Service Desk at 202-319-4357 (-HELP).

Please install the free Duo Mobile App on your new phone, and email techsupport@cua.edu so that we may assist you.

Please email techsupport@cua.edu to alert us of this issue and we will set up an alternative solution.

No, the app is free. You can download the app from your mobile device’s app store (Apple App store, Google Play store).

For Apple iOS users

To download from the Apple App Store, you need an Apple ID account (this is an Apple requirement, not specific to DUO). During the Apple ID set up, you are asked to provide a form of payment. You may choose not to share any payment information at that time. However, some sort of “funding” needs to be set up in the account to download even free apps. You may be able to register a gift card.

For Google Android users

To download from the Google Play store, you need a Google account. During the Google account set up, you may be asked to provide a form of payment. You may choose not to share any payment information at that time. However, some sort of “funding” needs to be set up in the account to download even free apps. You may be able to register a gift card.

Very little. One authentication uses 2 KB. To put this into perspective, 500 authentications will use 1 MB of data. Which is well less than the average 3 MB it takes to download just one web page on your device’s browser.

The app needs access your camera to scan the QR code during the initial activation. After the enrollment is complete, you may disable the camera access completely using your phone's Settings.

Duo describes in a “Knowledge Base” article the information that the app collects: https://help.duo.com/s/article/2939?language=en_US. The article explains that “Duo only collects information required to provide and improve the service and provided by the device by default. Device information that counts as Performance Data gets de-identified and used for analytical purposes.” Please read the Duo article linked above for more details.