Adding/Removing/Renaming Devices in Duo
This article covers how faculty, staff, and emeriti can add, remove, and rename their devices in their Duo account.
Note that faculty and staff are eligible for a maximum of five (5) devices connected to their Duo account: their office/campus phone extension plus four additional devices.
1. Open your web browser to the CSUF Duo Devices Management website.
Go to the CSUF Duo Devices Management website.
2. Enter your campus username and password. Place a checkmark next to I'm not a robot. Then click Login.
If you want to modify Duo devices for an administrative account (e.g., [email protected]), you should enter the username and password for the administrative account.
You may also be prompted to complete a captcha verification after clicking on I'm not a robot.
- Enter your campus username and password. This is the same login/password that you use for the campus portal.
- Place a checkmark next to I'm not a robot.
- Then click Login.
3. Click Modify Duo Devices.
4. Click Need help? at the bottom of the authentication notification.
Do NOT approve the push notification or authenticate with Duo in another way at this time.
5. Click Manage devices in the I need to manage devices section.
Both Manage devices links will take you to the same device management page.
6. Choose how you want to authenticate with Duo and complete the authentication. Be sure you have the device available!
7. You're now viewing the devices in your Duo account.
What do you want to do?
To update your phone number/device in Duo, you will need to first add another device and then remove the original device.
1. Click Add a device.
2. Choose Duo Mobile.
It's highly recommended to use the Duo Mobile app on a smartphone or tablet for the most secure authentication. However, you can add a landline or non-smartphone mobile phone by selecting Phone number and then following the prompts.
3. Enter your mobile phone number. Then click Add phone number.
Click I have a tablet if you are adding a tablet. The steps will be similar to the ones for adding a mobile phone.
- Enter your mobile phone number.
- Then click Add phone number.
4. Verify that the phone number is correct and then click Yes, it's correct.
5. Are you seeing a message that says Confirm Ownership?
The Confirm Ownership message appears when your phone number is already associated with an account in Duo. For example, if you are both staff and a student, you can link both your faculty/staff Duo account and your student Duo account with the same phone number. Or if you manage an administrative account (e.g., [email protected]), you can link both your individual Duo account (e.g., [email protected]) and the administrative account to the same phone number.
If you are not aware of your phone number being associated with another Duo account, immediately contact the IT Help Desk at [email protected] or 657-278-7777.
1. Click Send me a passcode to confirm with a passcode. Or click Or call my phone to confirm by phone call.
- Click Send me a passcode to get a text with a verification code.
- Click Or call my phone and you will receive a phone call from Duo with instructions on how to authenticate (normally just press a number on your phone's dial pad).
2. If you choose to get a text message, enter the verification code you receive and then click Verify.
- Enter the verification code you receive via text.
- Then click Verify.
6. If you haven't already downloaded the Duo mobile app, you can use the links on this screen. Then click Next.
7. You will see a QR code that you will scan with your mobile phone in a moment.
8. Open the Duo mobile app on your mobile phone. Tap Add.
You may see a setup wizard when you open the Duo app; if so, just follow the prompts!
9. Tap Use QR code.
10. Use your phone's camera to scan the QR code in your web browser.
11. Tap Next.
12. Modify the Account name if you wish. Then tap Save or Done.
- You can modify the Account name if you wish or leave it as is.
- Then tap Save.
- Or tap Done.
13. Tap OK.
14. Go back to the Duo Devices Management page. You should see a confirmation that your mobile phone was added. Click Continue.
15. The new mobile device is added. Now click Edit next to the device you want to remove.
- The new mobile device has been added.
- Click Edit next to the device you want to remove.
16. Select Delete.
17. Click Delete [name of your device] to confirm you want to remove the device from your Duo account.
The name of your device will depend on its operating system (e.g., Apple or Android) and whether you have renamed the device.
18. The device is now removed and your new device with the correct phone number is available.
You can always re-add the device to your account if you wish.
The instructions below show adding a new mobile smartphone to Duo. Depending on the type of device you are adding, the instructions may be slightly different.
1. Click Add a device.
2. Choose Duo Mobile.
It's highly recommended to use the Duo Mobile app on a smartphone or tablet for the most secure authentication. However, you can add a landline or non-smartphone mobile phone by selecting Phone number and then following the prompts.
3. Enter your mobile phone number. Then click Add phone number.
Click I have a tablet if you are adding a tablet. The steps will be similar to the ones for adding a mobile phone.
- Enter your mobile phone number.
- Then click Add phone number.
4. Verify that the phone number is correct and then click Yes, it's correct.
5. Are you seeing a message that says Confirm Ownership?
The Confirm Ownership message appears when your phone number is already associated with an account in Duo. For example, if you are both staff and a student, you can link both your faculty/staff Duo account and your student Duo account with the same phone number. Or if you manage an administrative account (e.g., [email protected]), you can link both your individual Duo account (e.g., [email protected]) and the administrative account to the same phone number.
If you are not aware of your phone number being associated with another Duo account, immediately contact the IT Help Desk at [email protected] or 657-278-7777.
1. Click Send me a passcode to confirm with a passcode. Or click Or call my phone to confirm by phone call.
- Click Send me a passcode to get a text with a verification code.
- Click Or call my phone and you will receive a phone call from Duo with instructions on how to authenticate (normally just press a number on your phone's dial pad).
2. If you choose to get a text message, enter the verification code you receive and then click Verify.
- Enter the verification code you receive via text.
- Then click Verify.
6. If you haven't already downloaded the Duo mobile app, you can use the links on this screen. Then click Next.
7. You will see a QR code that you will scan with your mobile phone in a moment.
8. Open the Duo mobile app on your mobile phone. Tap Add.
You may see a setup wizard when you open the Duo app; if so, just follow the prompts!
9. Tap Use QR code.
10. Use your phone's camera to scan the QR code in your web browser.
11. Tap Next.
12. Modify the Account name if you wish. Then tap Save or Done.
- You can modify the Account name if you wish or leave it as is.
- Then tap Save.
- Or tap Done.
13. Tap OK.
14. Go back to the Duo Devices Management page. You should see a confirmation that your mobile phone was added. Click Continue.
15. You're done! You'll see the mobile phone you added in your device list.
1. Click I have a new phone for the phone number/device you want to update.
Got a new phone number? Follow the instructions for The phone number/device in Duo is wrong and I want to change it.
2. Click Get Started.
3. Click Send me a passcode to confirm your ownership with a passcode. Or click Or call my phone to confirm by phone call.
- Click Send me a passcode to get a text with a verification code.
- Click Or call my phone and you will receive a phone call from Duo with instructions on how to authenticate (normally just press a number on your phone's dial pad).
4. If you choose to get a text message, enter the verification code you receive and then click Verify.
- Enter the verification code you receive via text.
- Then click Verify.
5. If you haven't already downloaded the Duo mobile app, you can use the links on this screen. Then click Next.
6. You will see a QR code that you will scan with your mobile phone in a moment.
7. Open the Duo mobile app on your mobile phone. Tap Add.
You may see a setup wizard when you open the Duo app; if so, just follow the prompts!
8. Tap Use QR code.
9. Use your phone's camera to scan the QR code in your web browser.
10. Tap Next.
11. Modify the Account name if you wish. Then tap Save or Done.
- You can modify the Account name if you wish or leave it as is.
- Then tap Save.
- Or tap Done.
12. Tap OK.
13. Go back to the Duo Devices Management page. You should see a confirmation that your mobile phone was added. Click Continue.
14. You're done! Your new phone is connected to Duo.
Duo will automatically choose your default device for you based on your available authentication methods and which device was added first.
By default, Duo will choose the most secure method of authentication based on the devices you have added to Duo and automatically send a push/text/call to that device. If you have multiple devices that are capable of the same authentication method (e.g., you have the Duo Mobile app installed on multiple devices), Duo will choose the device that was added to Duo first as your default device.
Duo authentication methods from most to least secure:
- Verified Duo Push
- Duo Mobile push approval
- Duo Mobile generated passcodes
- Hardware token passcodes
- SMS passcodes
- Phone call approval
There is currently no way for you to re-order your devices in your Duo account. The only way to re-order them is to delete a device and then re-add it to change which device was the first added.
- In the screenshot above, the Tuffy iOS device is currently the default device. The user would need to delete this device.
- The iOS device is currently the secondary device. The user can choose to authenticate with it, but it is not the default device.
- Note that because the Generic Smartphone (the user's campus phone) is not capable of receiving a Duo push, Duo automatically ignores it in favor of the first device that is capable of a Duo push since that is the most secure authentication method.
After you delete and re-add a device, the order of the devices will change.
- In the screenshot above, the iOS device is now the default device for this user.
- The Tuffy iOS device is now the secondary device for this user. The user can still choose to authenticate with it, but it is not the default device.
You must have at least one device/phone in Duo. If you have only a single phone/device in Duo, you won't be able to remove it. Please see the instructions under The phone number/device in Duo is wrong and I want to change it.
1. Click Edit next to the device you want to remove.
2. Select Delete.
3. Click Delete [name of your device] to confirm you want to remove the device from your Duo account.
The name of your device will depend on its operating system (e.g., Apple or Android) and whether you have renamed the device.
4. The device is now removed.
You can always re-add the device to your account if you wish.
Changing the device name in Duo is particularly helpful for tablets since there is no phone number associated with them.
1. Click Edit next to the device you want to rename. Then select Rename.
- Click Edit next to the device you want to rename.
- Then click Rename.
2. Enter the new Device name you would like. Then click Rename.
- Enter the new Device name you want for the device.
- Then click Rename.
3. The new device name appears. You're done!
Need More Help?
Contact the IT Help Desk at [email protected] or 657-278-7777.