To add a cell phone for SMS and install the Duo Mobile App

The instructions below apply to iOS, Android, and Windows devices.

Go to https://2fa.uwaterloo.ca/duo/dmp .
Select Mobile phone and click Continue.
Enter your phone number.
Confirm the phone number is correct and click Continue.
Select the type of phone you are using and click Continue.
If you haven't already, follow the instructions to install the Duo Mobile app.
Then click I have Duo Mobile installed.
Follow the instructions to open the Duo Mobile app and add your phone to your Duo 2FA account by scanning the barcode.
Set app to Automatically send this device a Duo Push. This will prevent you from having to select Send me a Push each time. (optional step)
Log out and close your browser.

Add the Duo Mobile App to a tablet or without providing a phone number

The instructions below apply to iOS and Android tablets.

Go to https://2fa.uwaterloo.ca/duo/dmp.
Select Tablet and click Continue.
Choose the type of tablet you are using and click Continue.
If you haven't already, follow the instructions to install the Duo Mobile app, then click I have Duo Mobile installed.
Follow the instructions to open the Duo Mobile app and add your device to your Duo 2FA account by scanning the barcode.

To start enrolling a new device, sign in to the Device Management Portal and select and complete the authentication prompt (e.g. Call Me, Enter a Passcode, or Send Me a Push).
On the next screen, My Settings & Devices, click the +Add another device link.
1. If you're adding a new device to replace one that you previously activated for Duo Push, don't select the Duo Push authentication method on this page unless you still have the original device.
2. If you don't have the original device, but you have a new device with the same phone number, then you can authenticate with a phone call or SMS passcode.
3. You can't add a new device from this page if you do not have access to any of your previously enrolled authentication devices; you'll need to contact the IST Service Desk for help.
Proceed with the device enrolment process for the device you'd like to add.
Once you've completed the enrolment process, the newly added device will appear on your My Settings & Devices screen. You can click +Add another device to start the enrolment process again.

If your new device is replacing the one you previously enrolled, you can remove the device you won't be using any more for authentication.

On the My Settings & Devices screen, click the Device Options button next to the device you want to remove
Click the trash can button to delete that device.
You'll have the chance to confirm that you want to delete that device.