There are two methods of using the DUO mobile app to authenticate; Push notifications and Duo Mobile Passcodes.


Push Notifications (most common)


  1. Push Notifications are usually the default method for authentication. When selecting "Duo Push" a push notification will be sent to your Duo app of the associated phone number.



  2. Once you received the notification open the app and you will be prompted with this page that pops up. On your device you will need to input the 3-digit code that appears on the computer into your computer to complete the request.
    • Note: These requests time out after about a minute, but you can select the "try again" button to push a fresh request.


Duo Mobile Passcode


  1. You may select the Duo Mobile Passcode option to input a passcode directly from the Duo mobile app. Selecting this option will ask for a 6-digit passcode from the app.
     
  2. On the Duo mobile app you'll see "Passcode" underneath your Colorado State University account. Press "Show" to the right of the privatized passcode to reveal the digits.


  3. Input the 6-digit code revealed by the app into the Duo prompt on your computer. These passcodes do change regularly so they will change between uses.