The steps below will help to add entirely new devices to Duo Mobile, such as devices with a new phone number, tablets, and U2F/Security keys. If you are trying to reconnect the app back to a device/phone number that already exists within Duo, please review the instructions for reactivating the Duo Mobile app.

Authenticating on the Duo Enrollment and Device Management page

1. To start enrolling a new device, visit the Duo Enrollment and Device Management page.
2. Choose an authentication method to complete two-factor authentication using one of the following:
   
   1. An existing device
   2. Duo SMS passcodes
   3. If none of the above methods work, visit the Walk-In Center or contact the Help Desk at 919-515-4357 (HELP) for further assistance.
3. Select + Add another device to begin setting up the new device on Duo.
4. Follow the on-screen instructions for the intended device.

Below are further instructions on how to add available devices:

• Mobile phone (links both a phone number and the Duo Mobile app to Duo 2FA)
• Tablet (links only the Duo Mobile app to Duo 2FA)
• Security Key (links a U2F security key to Duo 2FA)