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These minimum requirements must be met on your iOS or Android mobile device in order to authenticate with Duo mobile at PPS:

1. You must have a screen lock on the mobile device enabled which can be in the form of a password, PIN, pattern, a fingerprint/Touch ID, or Face ID.
2. Your mobile device may not be rooted/jail-broken. You must restore your device to the manufacturer authorized operating system to meet this requirement.
3. Device specific instructions:

Ios - and  

Android - and  

If your device does not meet these minimum requirements, you may receive this message when attempting to authenticate with Duo and will not be allowed to proceed:

You may have trouble receiving push requests if there are network issues between your phone and the Duo service. Many phones have trouble determining whether to use the Wi-Fi or cellular data channel when checking for push requests, and simply turning the phone to airplane mode and back to normal operating mode again often resolves these sorts of issues, if there is a reliable internet connection available. Similarly, the issue may be resolved by turning off the Wi-Fi connection on your device and using the cellular data connection.  Also, try opening the Duo application to verify if there is a push request waiting to be accepted.

Check the time and date on your phone and make sure they are correct. If the date and time on your phone are manually set, try changing your device's configuration to sync date and time automatically with the network.

Call the Help Desk at 503.916.3375 if your token stops working or if you can't log in with the passcodes it generates.

Your token can get "out of sync" if the button is pressed too many times in a row and the generated passcodes aren't used for login. In some cases this can happen by accident if the token is stored next to other objects in a pocket, backpack, etc. Your administrator will ask you to generate three passcodes in a row and can attempt to resynchronize the token.

The Duo Authentication Prompt will gray out the rest of the prompt during an automatic push. Follow these steps to select the "Remember me for 9 hours" checkbox:

Click Cancel on the automatic push message at the bottom of the prompt.

Select the ‘Remember me for 9 hours’ checkbox.

Initiate another push and authenticate. You will now be remembered on that browser on that computer for 9 hours.

NOTE: Remember Me should only be used with a device you own or that is assigned only to you. Never use the feature on public or shared devices. 

You must enable a ‘cookie’ from Duo to allow this feature to work.

Specific instructions from Duo are

When you check Remember me for 9 hours, your browser is what does the "remembering." This means that Your DUO authentication will not be remembered when you:

• Switch browsers
• Use a private or Incognito window in your browser
• Use a different computer
• Clear your browser's cookies  
• Have your browser block third-party cookies

For example, suppose you checked Remember me for 9 hours this morning when you were using Chrome. When logging in after lunch, you decide to use Safari or Firefox. Because you switched browsers, you'll be asked to verify your identity with Duo again.

Finally, if your web browser is set to clear cache and cookies upon close, the Remember Me option will not work. You can disable this in or . 

Youe 2nd-step device (phone or tablet) is not connected.

Check that the device has not been placed in 'Airplane mode'.

You may also open the Duo Mobile app and use the 6-digit passcode to login

Please call the Help Desk at 503.916.3375 for assistance logging in

If you lose a device that is enrolled in your Duo account, please contact the IT Help Desk at 503.916.3375 so that they can ensure it has been safely removed from your account.