You can change your Duo authentication options for use with ArchPass two-step login. Use the following guide to :
Change Your Duo Options and Settings
Go to the Self-Service Portal and complete the login steps as follows:
Authenticate with your current device (i.e., Send Me a Push, Call Me, or Enter a Passcode).
If you have more than one device enrolled, scroll down to see your full list of devices.
Click Device Options next to the device or phone number you want to delete, rename, or reactivate.
To change your device's name in Duo click Change Device Name, enter a new name in the name field, and click Save.
We recommend you use Ask me to choose an authentication method in the When I log in drop-down list.
Click Device Options next to the device or phone number you want to reactivate.
Click Reactivate Duo Mobile and follow the onscreen prompts to update your smartphone settings and reactivate.
Click Device Options next to the device or phone number you want to delete.
Click the red trashcan icon and select Remove on the pop-up box that appears.
To Add Another Device Click from the My Settings and Devices screen click the link to + Add Another Device
Enroll your new device by following the onscreen prompts.