Duo Two Factor Authentication First Time Setup - iPhone


How do I setup Duo Two Factor Authentication for the first time using an iPhone?


When you first attempt to access an application protected by Two Factor Authentication, you will be prompted to create an account. To set up your iPhone for Duo Two Factor Authentication, follow these steps:

*Please Note: If you have already configured your Duo account and need to add a new device, please reference one of this article How Do I Add a New Duo Device (Same Phone Number)? - if your have a device with a different phone number, please contact ITS directly at 419-372-0999.

  1. Sign in to MyBGSU.
  2. From the Duo Welcome screen select the Start setup button. 
  3. On the Add a new device screen, select Mobile phone followed by Continue.
  4. Select your Country from the drop-down menu.
  5. Enter the phone number of the device you would like to register.
  6. Confirm that you have entered the phone number correctly by checking the box below.
  7. Select Continue.
  8. Select iPhone as the device type followed by Continue.
  9. Launch the Apple App Store app on your device and search for "Duo Mobile".
  10. Select Get and then Install to install the app on your device.
  11. Select OK when asked if Duo Mobile should be able to send push notifications.
  12. Once installed, select I have Duo Mobile on the Duo Login screen.
  13. Open the Duo Mobile app on your phone.
  14. Select Accept to accept the License Agreement.
  15. Select Use QR code.
  16. Use your phone to scan the bar code on the Duo screen
    • If you are unable to scan the bar code, select the "Having problems?..." link and follow the instructions provided. 
  17. Once the bar code has been successfully scanned, select Save on the Duo screen.
  18. Select Continue on the Login screen
  19. Configure Automatic Phone Options (Optional)
    • With this option enabled Duo automatically sends an authentication request via push notification to the app on your tablet or a phone call to your phone (depending on your selection).
      1. Select Save.
      2. Select Continue to login.
  20. Select an Authentication Method.
    • Duo Push* - Pushes a login request to your device. Just review the request and select Approve to log in.
      • *Duo Push is the recommended authentication method.
    • Call Me - Authenticate via phone call
      1. Duo will call your phone/device and the status bar at the bottom of the authentication prompt updates that it is dialing your number.
      2. Answer the call and follow the instructions to authenticate. The authentication prompt's status bar also tells you how to approve the request over the phone.
    • Enter a Passcode - Log in using a passcode generated by Duo Mobile.
      1. Select Enter a Passcode.
      2. Select Send codes.
      3. Enter the passcode you received from Duo via text message.
      4. Select Log In.
  21. You should now have a registered Duo Two Factor Authentication account.

**Please do not approve Duo authentication requests if you have not attempted to log in to a protected service. For more information review this article** 

For additional assistance, please contact Information Technology Services at 419-372-0999 or through chat.


Article ID: 121438
Tue 12/1/20 4:50 PM
Thu 2/15/24 9:30 AM

Related Articles (2)

Instruction on how to add a new device with the same phone number to the Duo Authentication system
Instructions for adding a new device with a new phone number to Duo (if you still have the old device).