With Duo Mobile, users that don't have a phone Wi-Fi connection or cell service can still authenticate a duo prompt. Once the app is installed and registered to your account, it can generate one-time-use passcodes without any internet connection at all!
Example Scenario:
You're in a class where only your laptop gets Wi-Fi. You need to log in to Blackboard on your laptop, but you can't authenticate with Duo because your phone won't connect to Wi-Fi and it's not getting good enough cell reception to receive a Duo push notification or call.
Solution:
Open the Duo Mobile app on your phone, select the "North Dakota University System" account from the list, and use the six-digit passcode displayed to authenticate the Duo prompt on your laptop.
If you don't already have Duo Mobile set up on your phone, follow the steps below.
- Go to https://2fa.ndus.edu and sign in with your user.name credentials
- Select the "Add a device" box
- Select "Phone number" from the list
- Follow the on-screen instructions where you'll add a number, verify it via text message, then see a QR code on your computer screen
- From the Duo Mobile app, start initial setup or add a new account and select "Use QR code" to use your phone's camera to capture the code on your computer screen
- Finish setup in Duo Mobile and you should see an account titled "North Dakota University System"
- Tap that title and a six-digit one-time-use passcode will appear that can be entered at the Duo prompt on your computer or mobile browser.
- Test the passcode functionality by putting your phone in airplane mode, refresh the code, and use it to authenticate from another device.