Two-Step: Getting Started with Duo

Posted September 5th, 2018 at 10:16 pm.

Before you start, you will need access to the following:

  • a Bryn Mawr College account
  • a laptop or desktop computer w/ internet access

Table of Contents:


Enroll in Duo

  1. Navigate to any Duo-protected resource
    (i.e. Webmail or Moodle)
  2. Enter your Bryn Mawr College credentials
  3. Follow the instructions on the Duo welcome screen to enroll

There are several authentication methods available — LITS recommends using the Duo Mobile app. We encourage you to enroll as many options as you can for flexibility and convenience. No phone? No problem. You may also purchase and enroll a YubiKey yourself, or request a Security Token via LITS.


Adding a Device

Having more than one Duo device is highly recommended to ensure you always have access to your account(s) — even if your primary device is unavailable. Add more by following the instructions below.

Note: If you are adding a smartphone or tablet, please start the process using a different device than the one you’re adding.

  1. Navigate to the Duo Device Management Portal
  2. Login with your College credentials & authenticate w/ Duo
  3. Select Add another device
  4. Follow the instructions provided

For more information see Duo’s Adding a New Device.


Activating or Reactivating Duo Mobile

Using the Duo Mobile app will allow you to receive push notifications — the fastest and one of the most secure methods of authentication. Additionally, this will allow you to generate one-time use codes even without a wireless or cellular network connection.

The following instructions apply to you if:

  • You added your smartphone to Duo, but never set up the Duo Mobile app
  • You got a new smartphone, but retained the same phone number
  • You performed a factory reset on your Duo-enrolled device

Note: Start the process on a different device than the one you intend to activate/reactive Duo Mobile for.

  1. Navigate to the Duo Device Management Portal
  2. Login with your College credentials & authenticate w/ Duo
  3. Identify the device on which you’d like to activate/reactive Duo Mobile — select Device Options
  4. Click on Reactivate Duo Mobile
  5. Follow the instructions provided.

For more information see Duo Mobile on iOS & Duo Mobile on Android.


Duo Protected Email and Mobile Syncing

The following applies to you if:

  1. You sync your Bryn Mawr College email to your mobile device
  2. You set up your Bryn Mawr College email on your device before enrolling in Duo

If the above applies to you, please remove your College email account from your mobile device (iOS, Android) and then re-add it.


Generating Duo Passcodes

Duo passcodes can be generated even without a wireless or cellular reception, ensuring you’ll always be able to authenticate with Two-Step verification.

  1. Open the Duo Mobile app
  2. Tap the next to DUO-PROTECTED Bryn Mawr College

Note: To generate a new passcode, tap the refresh icon next to the old passcode.



If you have any additional questions or problems, don’t hesitate to reach out to the Help Desk!

Phone: 610-526-7440
Location: Canaday Library 1st Floor


Filed under: General Assistance,Information Security by Bonnie Wei

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