How do you set up Duo MFA on a mobile device?

To set up Duo MFA using a landline or hardware token, begin with the first two steps, then follow the online prompts (you don't need to complete Steps 3 through 6).

1. (On your computer) Click the enrollment link in the email that you received. The Setup screen displays.
2. Click Start Setup and follow the in-screen prompts.
3. (On your mobile device) Download the Duo Mobile app and follow the in-screen prompts to install it.
4. Scan the barcode that displays on the computer screen and click Continue.
5. (Optional) Update your Device Options, or add another device by clicking Add Another Device.
6. (Optional) Give it a try: Click Send Me a Push on your computer, then tap Approve on your mobile device.

How do I use Duo to authenticate a phone?

To authenticate a mobile phone or landline through a call:

1. In the Choose an Authentication Method screen, click Call Me. (If you don't see that screen, type PHONE into the "second password" field.) Duo calls your phone.
   Note: The status bar at the bottom of the window updates at each step.
2. Answer the call and listen to the instructions to authenticate. The status bar indicates how to approve the request over the phone.

How do I use Duo to authenticate with any cell phone (SMS Passcode)?

To authenticate using a passcode that is texted to your phone, complete the following steps.

1. In the Choose an Authentication Method screen, click Enter a Passcode > Text Me New Codes.
   Note: The status bar at the bottom of the window indicates that passcodes were sent to your phone. You might receive multiple codes, in case of limited cell service.
2. To authenticate, click Enter a Passcode, type in a passcode you received via text message, and click Log In.

Note: Whenever you request a new batch of passcodes, delete the previous text message to ensure you use the latest.