In the absence of Wi-Fi, network or cellular connectivity, the push and call method will not work, but your device will continue to generate Duo passcodes. Alternatively you can also use a hardware token. To use a mobile passcode, if you have previously setup the Duo app on your mobile device, follow the instructions below.

1. When signing into a Rutgers service and the Duo prompt appears, if it is not already prompting for a passcode, select Other options.
   
        
   
   
2. On the list of other available options to log in select Use Duo Mobile passcode. 
   
        
3. Open the Duo mobile app on your phone and click on the Rutgers University New Jersey account.
4. A six digit passcode will be displayed, you can copy this passcode or click Refresh Passcode for a new one. 
   
          
   
   
5. Enter the six digit code on the Duo prompt, then click Verify.