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Supported Browsers include Chrome, Firefox, Safari, Edge, Opera, and Internet Explorer. Some browsers do not support all of Duo's authentication devices (for example, Security Keys won't work with Internet Explorer). For the widest compatibility with Duo's authentication methods, we recommend recent versions of Chrome and Firefox.

Before you begin

Install the free Duo Mobile app before you begin enrolling in 2-Step Login.

Find the latest version of Duo Mobile in the App Store if you are an iOS user, or from Google Play if you are an Android user, as well as minimum operating system requirements.

Instructions

  1. The Welcome Screen will appear the first time you log into a protected web application after being newly activated. 
    If you are already enrolled and need to set up a new device please follow the instructions at 2-Step Login Duo Device Portal

    Click the Start setup button to begin enrolling your device.
    Start Setup button

  2. Choose Your Authentication Device Type
    Select the type of device you'd like to enroll and click the Continue button.
    We recommend using a smartphone for the best experience, but you can also enroll a landline telephone, a security key, or iOS/Android tablets.
    What type of device are you adding
     
  3. Enter Your Phone Number
    Select your country from the drop-down list and enter your phone number. Use the number of your smartphone, another cell phone, or landline that you will usually have available when logging in.
    Check the box to confirm your number, and click the Continue button.
    Enter phone number

    If you are enrolling a tablet, you are not prompted to enter a phone number.

  4. Choose Platform
    Choose your device's operating system from the list and click the Continue button.

  5. Install Duo Mobile

    • Free
    • Fast and easy
    • Works in any country
    • Doesn't require cell service

    Duo Mobile is a free app that runs on your smartphone and helps you authenticate quickly and easily. Follow the instructions on the screen to install Duo Mobile. After installing our app return to the enrollment window and click I have Duo Mobile installed.
    You can still complete 2-Step Login using a phone call or text message, but for the best experience, we recommend that you use Duo Mobile.
    Install Duo Mobile for iOS

  6. Activate Duo Mobile
    Activating the app links it to your account so you can use it for authentication. Activate Duo Mobile by scanning the barcode with a barcode scanner built into the Duo Mobile app on your smartphone.
    Click the Continue button after you scan the barcode successfully.

    Activate Duo Mobile for iOS

    Can't scan the barcode? Click Email me an activation link instead and follow the instructions here:

    Enter an email address you can access from the device on which you are setting up Duo Mobile to receive the alternative activation link and click Send email.
    Send email

    Check your email account using the device with Duo Mobile installed and click the link in the message from Duo Security.

    Activation email from Duo Security

    On the page that opens, select Activate Duo Mobile. if you are not automatically prompted to switch to Duo Mobile.

    If that does not work, you can copy/paste the displayed code into the Duo Mobile app.

    Duo Mobile activation page from clicking the emailed link

    Duo Mobile should now have your account added. Click Continue on the setup page to complete the process.

    Continue link

  7. Configure Device Options (optional)
    You can use Device Options to give your phone a more descriptive name, or you can click Add another device to add a second phone or another authenticator.
    If this is the device you'll use most often with Duo then you may want to enable automatic push requests by changing the When I log in: option and changing the setting to "Automatically send this device a Duo Push" or "Automatically call this device" and click Save or Finish Enrollment.
    Device Options

  8. Congratulations, your mobile device is ready to use Duo!
    Click Continue to login to proceed to the Duo Prompt.
    You can use Duo to complete your 2-Step login. We have further descriptions of the steps available at Using Different Options with Duo.

Additional Information

Use Duo Instant to Restore a Mobile Device when changing phones.


Need more help? Contact the ITS Service Desk.