How can I use 2-Factor Authentication (2FA) without network access or while traveling internationally?

The default 2FA options can incur data charges for text messages, phone calls, or accessing the Duo Mobile application. However, there are options to avoid this.

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Duo Mobile app

If you have the Duo App installed on your smartphone, you can open it and obtain the 6-digit code generated within the app, and use this in the Passcode option when prompted for 2FA. Your smartphone does not need an active cellular or wireless network signal for this to work, so long as the app has been registered to your 2FA account. For more information about the Duo mobile app, see this document: How can I install the Duo Mobile app?

     example passcode screen


Hardware Token

If you travel often or for long periods of time, you can purchase and use a hardware token and enter the 6-digit passcode from it. You can learn more about hardware tokens at What are 2FA hardware tokens?

Temporary Passcode

If you have a short term need, or do not travel often, you can use a temporary passcode. This process is briefly described below, and more detailed information is available at What is a 2FA Temporary Passcode and how can I use it?

Should you lose, misplace, or forget your 2FA device and can not authenticate, you have a couple of options.

Use NetID Center

  1. Visit the NetID Center and select Temporary passcode at the bottom of the page.

    the netid center screen
    1. If you have your 2FA device with you and are requesting a temporary passcode to use within the next 3 days, select Yes, I have my device.

      identifying the Yes, I have my device button

      You will be required to authenticate if you have your device. Your passcode will be displayed as well as the expiration date:

      example of temporary passcode screen
    2. If you don't have your 2FA device with you and are requesting a temporary passcode, select No, I don't have my device. This passcode will be sent to the Recovery Email address you set up with your Recovery Settings in the NetID Center. If you have not set one up, you will need to call your University Service Desk to get a temporary passcode.
      1. Once you receive that passcode please visit to set up your recovery email under the Recovery Settings.

        highlighting the No, I don't have my device button

      2. Go to your non-University email to get your Temporary Passcode. Email will be from and subject will be UI Verify Temporary Passcode.
      3. To authenticate with the Temporary Passcode.  Go to the application you are trying to access that requires 2FA.  When authenticating select Temporary Passcode from the drop down.  Then use the Temporary Passcode sent to email address and select Enter.

        Identifying the Temporary Passcode option in the authenticate screen dropdown

Use the Application

  1. Visit the application you are trying to access and at the bottom of the authentication screen, select Get a temporary passcode.

    Identifying the Get a temporary passcode link in the authenticate screen
  2. Select Send passcode

    identifying the send passcode button
  3. Go to your non-University email to get your Temporary Passcode. Email will be from and subject will be UI Verify Temporary Passcode. Enter the code from email and select Enter.

    highlighting the field to enter the bypass code

    If you no longer have access to this account, you can call your University service desk for assistance with a temporary passcode.

Cancel a Temporary Passcode

  1. Visit, log in, and under 2-Factor Authentication, select Manage my 2FA.
  2. Under My Devices & Settings select the + next to Temporary Passcode and then the trash can to delete/expire the code.

    example my devices and settings screen
Manage 2FA Print Article


Article ID: 877
Fri 1/15/21 6:12 PM
Tue 6/4/24 3:35 PM

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The University of Illinois uses a 2-Factor authentication (2FA) service provided by Duo Security, an industry leader in cyber security services. This will help secure your account and the University's sensitive data. The University of Illinois is committed to securing its institutional data and the personal information of everyone at the University.

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2-Factor Authentication is a method of confirming your identity by utilizing something you know (password) AND a second factor.