Question

How do I register multiple devices in Duo?

Answer

We recommend registering multiple devices in Duo because this will provide a backup method of authenticating with Duo when your primary method is not available.

For example, in addition to registering your smartphone in Duo, you may also wish to register your landline. Then if you don’t have your phone with you, you can still authenticate with Duo using your landline. 

If you have multiple devices registered in Duo, only the device that you select as your "Default Device" will receive the Duo prompt. You will not receive Duo prompts from every device each time you authenticate.

To enroll a secondary device:

1. Go to computingaccounts.ucdavis.edu
2. Select Duo Multifactor Authentication
3. Authenticate with Duo
4. Select +Add another device

5. Now, follow the steps in one of the following articles to add a secondary device
   
   1. Smartphone - start with step 1e
   2. Non-smart cellphone - start with step 1e
   3. Landline - start with step 1e
   4. Hard Token
6. Ensure that your preferred primary Duo device is set as your "Default Device."

7. Click End Session.