If you have a device that is currently enrolled in Duo and is working, you can add a secondary Duo device or manage your existing Duo devices.
If you do not have a device that is currently enrolled in Duo or is not working, please see the article Reactivate Duo on Your New Device
Note: You must be signed in to view the article Reactivate Duo on Your New Device. Click Sign In next to the search bar in the top right corner.