How to enable Multi Factor Authentication using Google Authenticator on a SonicWALL VPN 

As remote work from home becomes more and more a requirement in the times of coronavirus ( COVID-19 ), Small Business IT managers should enforce zero trust policies and Multifactor Authentication on their organization’s exposed potential surface attack.

Not a novelty like the coronavirus, but more important than ever has been, implementing 2FA / MFA in Office 365 applications is one of the many steps you must take to secure your information. Unexposed hackers might gain access to read your emails, get to know your business internal secrets that will empower them to further compromise, send phishing emails and attack other fronts within your organization.

In this article we will guide you on how to configure Office 365 MFA authentication using either SMS or Microsoft Authenticator, an app provided by Microsoft that is available on all app stores.


1 – Download the Google Authenticator App on your mobile device. No need to do any configuration yet.  Just download the App because you will need it later on.

2 – On the device you would like to use to log in to your corporate SonicWALL VPN (ex. Laptop, not on your cell phone),  browse using chrome or any web browser to your SonicWALL’s external IP address:




  This will take you to the SonicWall Virtual Office webpage, you might be presented with an invalid certificate message, click on advanced and then click on proceed

3 – Next you will be presented with SonicWALL’s virtual office logon screen

Login using your VPN credentials.  Note:  If you click Login and it takes you back to the sign-in screen, please enter your Username and Password again.  It sometimes works on the second try.


4 – After you login, you will see a QR code displayed on the webpage.

This is the point where you will use your mobile device.

Go to the Google Authenticator App on your mobile device and open the App.

Click on “Begin Setup”.  Next, click on “Scan barcode”.

 At this point, your mobile device will enable its camera feature.

Take a picture of the QR code that is displayed on your laptop or computer.

After you take a picture from your mobile device, the Google Authenticator App will provide you with a 6 digit password.  Please enter that 6 digit password on the webpage where it says “Enter 2FA Code:”

You will come to a screen that says: “Your password has been verified”.

You might write down the emergency scratch code (optional) in case you lose your cell phone

Please click the link that says, “Click here to continue…”.


After you click that link, your authentication and MFA configuration is complete. Optionally on the next screen you might launch or download NetExtender software into your computer.


 Please proceed with opening the SonicWall Net Extender program and log in as you normally would.


 The only difference now is that you your VPN connection is more secure as you will be prompted to enter an additional code (MFA) during the login process, displayed in the Google Authenticator App.

See below images as a visual reference on how it looks for mac and windows computers