If you already have Duo Two-Factor Authentication setup and would like to add a new device or remove an existing device, follow the steps below. 

  1. In your preferred Internet browser, navigate to the website vpn.tamhsc.edu.
  2. Enter your TAMHSC username and password.
    Username and password box
  3. At the next screen you should see this:
    Duo authentication
    You will choose My Settings & Devices on the left-hand side.
  4. Here you can choose to add or remove devices by following the instructions below:
    My Settings and Devices

Adding a Device

  1. If you clicked on +Add another device then you will follow the prompts by choosing what type of device you have and then entering the phone number if it is a cell phone or landline. If it is a cell phone then you will also have to choose what type of cell phone. (Ex. iPhone, Android, Windows Phone, or Other).
  2. It will then ask if you have the Duo Mobile app installed on your phone. If you don’t have it then this is the step where you would need to go into your phone’s app store and download the free app.
    Duo Mobile phone install
  3. Once DUO Mobile is installed you can click on the I have Duo Mobile installed button. 
  4. It should then bring up a QR barcode for you to scan with your phone.
    QR barcode for activation
  5. At this point you will want to open the Duo Mobile app on your phone and if you have never added anything to this before you can click on the Add Account button or the + symbol on the top right. Make sure to allow Duo Mobile to access your camera so it can scan the QR barcode.
    Phone Add Account
  6. Once the Duo Mobile app scans the QR barcode and gives the green check mark the account is added. You can test to make sure the push notification works on the next screen.

Removing a Device

  1. If you are wanting to remove an old device from Duo and you clicked on the Device Options button next to the device you are wanting to remove, it should give the option for a red button with the picture of a trashcan on it.
    Remove device options
  2. Click on the trashcan and you will be prompted with the following:
    Remove device prompt screen
  3. If you are sure that you want to remove this device then click on the red Remove button and this will delete the device from your Duo account.