Two-Step Login: Options for Travelers

When accessing university services protected with Two-Step Login, options that work well for travelers include the following:

  1. If you own a smartphone, the recommended option is to install the Duo Mobile app on your phone, and use the "Duo Push" option to complete the second step of your login. The mobile app works using either a cellular connection or a wireless connection from anywhere in the world.  In addition, the mobile app will generate a one-time-use passcode directly on the phone when you tap the green key symbol in the app (shown below on the right), even when your phone is in "airplane" mode, and also when you have no cellular or wireless service in your location. You enter the passcode displayed in the app on your phone on the two-step login screen.

mobile passcode


  1. Have a set of passcodes sent to your phone via text message.  This option also works anywhere, however depending on your service plan you may incur a charge for the text if you receive it while abroad.  Each passcode can be used only one time, but you will receive enough to login 10 separate times in a single text message.  If you will not need to login frequently, you should consider to have the passcodes sent to you in a text message prior to your travel. Then, when you need to login, you can refer to the text message (saved on your phone) for a passcode to use.

get codes in text message


  1. A third option is to request and print a set of backup passcodes from the enrollment application and use them for logging in.  You will need to print them or save them to a file on your computer and refer to them when logging in during your travel.  NOTE: You will not be able to access the device enrollment application remotely, so you need to use this option prior to your travel. If you do not intend to take a phone with you while traveling, this is the option to use.  You can also use the enrollment application to have a set of passcodes sent to you in a text message that you save on your phone.  Both options are shown below. 

getting pass codes


Using Two-Step Login with Duo While in China

Duo Mobile and other authentication methods do work in China but there are considerations to be aware of depending on which mobile operating system is being used. For more support about using Two-Step Login with Duo in China, please visit the Duo support site for the most up-to-date information.



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Last updated: 
December 4, 2019