Purpose
If you have not previously enrolled in Duo, you should be automatically prompted to register when you try to access a Duo-protected application such as the Office 365 portal (portal.office.com) or Box (utdallas.box.com). This article assists first time users in the Duo enrollment process.
Instructions
Note: It is recommended that this be your mobile phone. This would allow you to authenticate using multiple methods such as push notifications, SMS, and Phone Call as per your convenience.
- If you selected either the Mobile Phone or the Landline option, you must enter your phone number and follow the following instructions.
- If you selected a Tablet, you need to choose the type of tablet you have and follow the Duo Application instructions.

- Once you have successfully set up a device with your account, you can choose to add another device or the default Duo behavior for your account.
- Once done, select Continue to login.

- Please choose the method you want to use to authenticate using Duo and confirm when completed.
- Once you have successfully authenticated with Duo, you will see a green banner appear at the bottom of the Duo window indicating your enrollment was successful.
Note: If you chose a default method on the previous screen, the corresponding authentication option will be automatically triggered.

- You are now all set! All your future Duo-protected log-ins will appear in this format for ease of use and continuity.
Note: If you still encounter issues enrolling in Duo, contact the OIT Help Desk via phone (972-883-2911) or
live chat between 7 am-11 pm seven days a week, except on certain holidays.