![]() ![]() It may also simply contain an image of a key. Depending on your device, this button may say Generate Passcode or Generate Token Code. Simply open the app and tap the Passcode button.You can request single-use passcodes directly from the Duo Mobile app, even when your mobile device is in airplane mode or lacks cell service. NOTE: In order to take advantage of the options below, be sure to register your device(s) for use with your 2FA account (including, if applicable, downloading and installing the Duo Mobile App on your smartphone) before you begin your travel. With the app, you can generate a passcode to enter when logging in by opening the Duo app, tapping the University of Idaho account, and using the 6 digit code that is revealed.Duo provides offline authentication options for times when you lack cell service or when using 2FA could cause you to incur extra cellphone charges, such as when you are traveling internationally. Yes, you can still complete authentication if you have a hardware token or the Duo mobile app enrolled on your account. Please ensure that it is enrolled with your Duo account by visiting and reviewing your list of devices. If you have a mobile phone number from another country, but have not added it to your Duo account, you will not receive Duo calls to that number. Alternately, you can use a passcode generated from within the app by opening the Duo app and tapping the University of Idaho account that is displayed on the screen. ![]() If you have the Duo mobile app enrolled on your account, try connecting to the internet and using a push notification to login. Each code may only be used once.Ĭommon Duo issues when travelling internationally I am not receiving phone calls from Duo when attempting to complete authenticationĬheck to ensure your phone can receive calls from US phone numbers and that you can dial US phone numbers. You can print or save those to use at any time in the future. To obtain the codes, visit an authenticated U of I website such as and when prompted for MFA, click "Enter a Passcode" (you may have to dismiss your default authentication), then at the bottom click "Text me new codes" which will send 8 backup codes to your phone. If planning for a future trip, or in an area where you have SMS capability, you can send 8 backup codes to your phone and print or save those to use at a later time. USA phone numbers can work outside the United States but success may vary depending on your phone, your carrier, your plan and International roaming options. For a step by step guide for enrolling a mobile number on your Duo account, please visit. If you obtain an international phone number and wish to use it for Duo when travelling, it is important to ensure the number is enrolled with your Duo account prior to your travel. Neither require an internet or phone connection to operate and can function when Wi-Fi or cellular service are unavailable. The Duo mobile app and hardware tokens are preferred authentication methods to use when travelling internationally. Hardware tokens do not require an internet connection to operate and can generates codes from any location regardless of country. In many cases, international SMS service is a separate feature from international calling and you should confirm with your carrier that your plan has the appropriate service. Many of the same factors apply to SMS or text messages while travelling internationally. However, if you have a mobile or landline phone number capable of receiving service in the country you're travelling in, and that phone number is enrolled in your Duo account, the likelihood is greater that you can use the number to complete authentication. International mobile phone standards may also lack compatibility with US mobile phones. Telephone service in international locales may be less reliable, especially outside North America and Europe, which can affect the ability to receive Duo authentication calls. A USA phone number may not be able to receive phone calls in other countries and vice versa if the plan does not include international service, or it is incapable of receiving service in the region. Successful phone calls from Duo to a mobile phone depend largely on the carrier's international capability, the features enabled for the plan, the phone number's original locale and it's current location. Passcodes can be generated from within the Duo app, no internet connection required. Push notifications to the Duo mobile app will work in any location as long as your phone has an internet connection. Common Duo issues when traveling internationallyĬonsiderations for each Duo factor Duo mobile app.This article covers using Duo multifactor authentication from locations outside the United States. ![]()
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