In the 'Second Password' field, enter one of the following, then click OK.

For Duo Mobile push (app): 

• Open your Duo app, select University of Waterloo, enter the code in the second password field [Recommended option], or

• Enter ‘push' or 'push1’ to send the prompt to your primary device, or

• Enter ‘push2’ to receive the prompt on a secondary device, ‘push3’ to receive the prompt on a tertiary device, etc.

For Duo hardware token: enter your 6-digit code

For Duo Bypass code: enter your bypass code

For SMS codes: enter ‘sms’; you will get a text message with 10 codes. Re-enter your password, and type the first code in the second password field.

For Yubikey: enter the code generated by touching the Yubikey

For Phone Call: enter 'phone'

• Enter ‘phone2’ to receive the prompt on a secondary device, ‘phone3’ to receive the prompt on a tertiary device, etc.

• If you are not receiving Duo phone calls, you may have a setting that is blocking the phone calls. Some possible solutions include adding the Duo phone number, (306) 900-4884, to your device whitelist, or if the service is blocking unknown callers, add the Duo phone number as a contact on the device.

  • iPhone: 'Silence Unknown Callers'

  • Telus/Koodo: 'Call Control'

  • Android: 'Block Unknown Callers'

  • Call Control or Call Blocker app

  • Any anti-spam service