If you need to re-activate the Duo app on your phone or tablet, please be sure to use a different device for the initial steps, as you will need to scan a QR code. If you have a new phone number, see CAE Duo - Activating the Duo app

1. In a web browser, navigate to mfa.cae.wisc.edu, where you should see the CAE Duo Portal, shown below. You will need to authenticate using Duo. If your phone or tablet was your only Duo enabled device, and you don't have any one-time use Duo codes, you can generate a temporary code here.
   • To enter a bypass code (one-time use or temporary) Select Other options.
      
   • Select Bypass code from the list.
     
   • Then enter the code.
     
2. You will arrive at the MFA homepage, select "Manage Devices." (You may need to log into Duo using your bypass code again)
   
   
   
3. You will then be taken to the Duo Security - Device Management portal. Find the device you wish to reactivate and select I have a new phone.
   
   NOTE: The following steps are identical whether you are reactivating a mobile phone or a tablet
   
4. Click Get started if your new device is using the same phone number as before, otherwise see CAE Duo - Activating the Duo app
   
   
    

5. Download Duo Mobile on your new device if you have not already and select Next.

   • iOS: Download the Duo Mobile App from the App Store.

   • Android: Download the Duo Mobile App from the Google Play Store.
     

6. Configure the Duo App on your mobile device and finish adding the device in Device Management Portal:

   1. Open the Duo App on your device.

      Note: After opening the Duo App, you may be asked to accept notification and camera privileges. Click Allow if prompted.

   2. If this is your first time enrolling with Duo on this device, you will arrive at the following screen. Press Continue.

      (Note: If it is not your first time using Duo on this device, tap the Add + button in the top right corner and select the Use QR code option.) 
      
      

   3. Select Use a QR code.
      

   4. Using your device, scan the QR code on the screen in the Device Management portal.

      
7. You will see the following screen in your browser if your device reactivation is successful, and your mobile phone should return to the Duo home screen. Click Continue. Reactivation is complete!