How to Add a Second Device to your Duo Account

About

If you would like to add a secondary device to your Duo MFA account, such as a work phone or tablet, you must always add that device as a Tablet. This is because a phone number is already attached to your Duo account if you have one device on it, so you will not be able to add a second phone number to the account. Make sure that you add secondary phones as Tablets, and that you have Duo Mobile installed on your device prior to beginning this process.

Environment

Desktop web browser.

Steps

  1. If you have your Duo saved so it doesn't always come up or if you are not sure, make sure to follow these steps in Incognito Mode. 
  2. Depending on your setup, you may get the initial prompt to which you should click cancel.
  3. Now click other options.

Duo prompt shown with pop up asking for Touch ID or password to be entered. One red arrow is pointing to cancel. A second red arrow is pointing to Other Options.

  1. Click Manage devices

Duo menu shown with a red square around Manage devices.

  1. Authenticate duo as you would normally.

Duo menu shown.

  1. All of your devices are displayed. If any look suspicious, remove them by clicking Edit followed by delete and follow the prompts.
  2. If you wish to rename any of your devices, do so by clicking Edit and Rename and follow the prompts.
  3. To add a Device, click Add a device

Device Management screen shown with red square around Edit, Rename, and Delete and another around Add a device.

  1. Select Duo Mobile

Duo menu shown with red square surrounding Duo Mobile option.

  1. Click I have a tablet even if this is a phone, since it is a second phone, you will need to add as a tablet.

Enter your phone number window is shown. Red square surrounds link to I have a tablet.

  1. Follow the on screen prompts from here.

For more help, please contact ITS at its@manhattan.edu or 718-862-7973.

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