Registering and managing your devices for Duo multi-factor authentication

You can register any call- or SMS-capable device for Multi-Factor Authentication (MFA), though we highly recommend using the Duo Mobile app for convenience. Please use a computer or separate device to register and have your authentication device handy to complete the registration process. A stable network connection (WiFi or data) is recommended.


Register a device for the first time

  1. On your computer, navigate to
  2. Click Start Setup. Note that once you start the registration process, you cannot stop!
  3. Select the type of device you would like to set up and click Continue. Then, follow the on-screen instructions to configure your device to accept authentication prompts.


Manage your Duo devices

  1. On your computer, navigate to any Duo MFA login page (i.e. CAESAR for students, myHR for faculty/staff).
  2. Click Other options.
  3. Click Manage devices.

To add or remove a device from your existing Duo account, please ensure that you have a registered device available. You will need to accept an authentication request to verify your identity to make changes to your account.

Add a new device

  1. Click on the Add a device tile.
  2. Select your desired authentication method and follow the on-screen prompts to configure your new device. Once complete, the new device should show as a separate tile on your Devices dashboard.

Register a new phone with an existing number

  1. Wait for the authentication request to time out, or click I have a new phone.
  2. Click Text me a link to receive an SMS activation URL.

      3. On your phone, tap the link to open Duo Mobile to reactivate the profile.

Remove a device

  1. On the upper right-hand corner of the device you would like to remove, click Edit.
  2. Click Delete. If you only have one device registered, the option to delete will not be visible.
  3. Click Delete again to confirm the removal of the device tile.



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Article ID: 314
Thu 5/12/22 12:36 PM
Thu 2/15/24 9:40 AM

Related Services / Offerings (1)

Northwestern offers many ways to help your IT system authenticate or authorize users. This includes Active Directory, LDAP, Single Sign-On (SSO), Multi-Factor Authentication (MFA), Shibboleth, SAML, and others.