Brief description of the service and overview of purpose of Q&A
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A user is automatically locked out when there are 10 consecutive failed log in attempts. This could happen if you don't respond to multiple push notifications, or if you selected the wrong device (calling an office landline when at home), or automatic log-in attempts by a 2FA-protected system when a user isn’t expecting them.
Once you have been locked out, you will need to can call the LTS Help Desk (610-758-4357) for assistance in unlocking the account.
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Before wiping your old phone, you should print out a new set of one-time-use codes to help with enrolling your new phone. Once you have the print-out, download the Duo Mobile app on your new phone. Then open a web browser and go to the Duo Device Management page.
On the Device Management page, press the green "Enter a Passcode" button, and enter one of the codes you printed out. 
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On an iOS device, even with cookies enabled in your browser, you may need to enable cookies through your iPhone settings for Safari as well. Follow these steps to access your Safari settings and make sure 'Block All Cookies' is not enabled.
How do I change my default authentication method?
Your default authentication method is the last method you use. If you prefer a different default method, choose "Other Options" from the Duo menu and select your preferred method to make it the default method. For more information see https://help.duo.com/s/article/2236?language=en_US
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