Duo 2FA: How to Register Devices

Find step-by-step guides below for registering and activating the Duo Mobile App and registering to authenticate with a phone call.

  • Register and Activate Mobile App (recommended primary method)

    Register and Activate the Duo Mobile App

    One-Page Quick Guide for steps below

    Duo Mobile App IconDownload Duo Mobile App

    To use a smartphone or tablet for Two-Factor Authentication, the Duo Mobile app must be downloaded and installed on the device.

    Duo Mobile for iPhone

    Duo Mobile for Android

    Register a smartphone or tablet

    To register a smartphone or tablet, users will login to the NetID Two-Factor Authentication (Duo) page with their NetID and password.

    Note: your screen may differ from the screenshots below, the instructions are the same.

    Click on the Register Device link on the right side of the Two-Factor Authentication page.

    Two Factor Authentication, highlighting Register Device link

     

    Provide a unique Device Name (Smartphone, tablet, iPhone, Android, etc.,) for the device.

     

    Two Factor Add Device screen, enter device name, phone number field is optional

    *A phone number is not needed for a tablet and it is optional when registering a smartphone. If a phone number is added, users will have the option to receive a phone call from DUO on their smartphone for authentication.

    Click on the Type dropdown and select DUO mobile app.

    Two Factor Authentication, Add Device, Type Drop Down menu highlighting Duo Mobile App option

    Click on the Platform dropdown to select the device platform, Apple iOS, Google Android, Windows Phone 7, etc.

    Two Factor Authentication, Add Device, Platform Drop Down menu

    Android example

    Two Factor Authentication, Add Device, Google/Android example fields showing Google Android Phone as Device Name, Duo Mobile App as the Type, and Google Android as the Platform

    iOS example

    Two Factor Authentication, Add Device, iOS example fields showing iPad as Device Name, Duo Mobile App as the Type, and Apple iOS as the Platform

    Once all necessary device information is entered, click the Save button to save the device information.

    Two Factor Authentication, Add Device, highlighting Save button

    After you click Save, the page will refresh to the Two-Factor Device Activation page with a barcode displayed. Leave this page open and move to the next step.

    Activate Duo Mobile App

    To Activate the DUO mobile app, open the Duo Mobile app on your device and then tap “+ Add” next to the Accounts section.

    Duo Mobile App, Add Accounts screen

    This will bring up the Duo Mobile app’s barcode scanner. Scan the barcode on the Two-Factor Device Activation page with the app’s barcode scanner.

    Two Factor Authentication, scan QR code

    When the device activates, the Duo Mobile app will display Colorado State University as an account.

    Duo Mobile App CSU Account displayed

    On the Two-Factor Device Activation page, click on Return to display your Registered Devices.

    Two Factor Authentication, highlight Return link

    Register another device

    To register another device, click on the Register Device link.

    Two Factor Authentication, highlighting Register Device link

    Test your Account

    To confirm the successful registration and activation of your device(s),

  • Register to authenticate with a phone call

    Register to Authenticate with a Phone Call

    To register a phone to authenticate with a phone call, users will login to the NetID Two-Factor Authentication (Duo) page with their NetID and password.

    Note: your screen may differ from the screenshots below, the instructions are the same.

    Click on the Register Device link on the right side of the Two-Factor Authentication page.

    Two Factor Authentication, highlighting Register Device link

    Provide a unique Device Name (Office Phone, Home Phone, etc.) for the device and enter the phone number.

    Add Device screen, Device Name is optional, Phone Number is required

    Click on the Type dropdown and select phone call.

    Add Device, Device Type Drop-Down menu, options are "phone call", "Duo mobile app", or "unknown". Select "phone call"

    Click on the Platform dropdown and select Generic Phone.

    Add Device, Device Platform Drop-Down menu, options include "Apple iOS", "Generic Phone", "Google Android". Select "Generic Phone"

    Once all necessary device information is entered, click the Save button.

    Two Factor Authentication, Add Device, highlighting Save button

    See the What to Expect: Duo Authentication “Call Me” guide, for details on the authentication experience with this method.

    Test your Account

    To confirm the successful registration and activation of your device(s),