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SonicWall NetExtender SSL VPN

4th July 2023 | Modified: 19th September 2023

Categories: How-to guide

Reading Time: 5 minutes

Table of Contents

A VPN allows you to access resources on your office network from wherever you are. SonicWall NetExtender is a piece of software that can be installed on your laptop or desktop that initiates the VPN connection.

Install SonicWall NetExtender

First, determine if SonicWall NetExtender is already installed by opening your Start Menu, and searching for SonicWall. If you see this icon, the software is already installed and you can move onto the next step.

If this is not installed, you will need to download and install this on your laptop or desktop device from the following link:

SonicWall VPN Clients | NetExtender & Mobile Connect

From here, you will need to select your version (usually Windows 64 bit) and select Download.

When prompted click Open

In the window that opens, click Next,

Now click I agree and Next

Click Next on the next screen

And Next on this screen

Finally click Next on this screen, and wait for the software to install.

Once installed, click Close

You will be prompted to reboot your computer. Select Yes

The software is now installed. We will configure this in the next sections.

Install the Microsoft Authenticator App

SonicWall NetExtender is configured to use MFA (Multi Factor Authentication). In order to initiate the connection you will first need to download and install the Microsoft Authenticator App from your mobile phones App Store.

Generate a QR Code

Login to the web portal of your VPN connection.


This is usually

(substituting for your company domain).



Here you will be prompted to enter your username and password.
Make a note of the Domain as you will need this later.

Enter your username and password and press Login

Once logged in, you will be prompted with a QR code.

Link the App to the QR Code

Now return to the Microsoft Authenticator app you installed earlier on your phone and click the + (add) button in the top right corner of the app.


Select the Other button

Now scan the QR code from the previous step.

You should now see SNWL on the list in the Microsoft Authenticator app and see a 6 digit code.

You will now need to enter the code from the Authenticator App into the 2FA Code box on your PC then press OK to complete the setup.

Multifactor Authentication has now been setup for the SonicWall NetExtender

Configure SonicWall NetExtender

Launch SonicWall NetExtender from your Start Menu

In the box that opens you will need to enter the following details

Server – usually sslvpn. Followed by your company domain (e.g

Username – the same username you use for your office PC or laptop

Password – the same password you use for your office PC or laptop

Domain – You should have made a note of this from the “generate a QR code” section

Once you have entered all these details, click Connect.


You will now be prompted to enter the code from your Microsoft Authenticator App.

Enter this and press OK.

This should now show as connected and you will be able to access company resources.

Having issues?

If you’re having problems, or if you’ve lost your phone and can no longer login to your SSLVPN, please contact the CNC service desk for further assistance:

Email or call 01273 386333


In conclusion

By utilising a VPN with two-factor authentication you can connect securely to your office and access shared resources. 

SonicWall NetExtender SSL VPN

By Paul

Paul has spent his career working in IT and telecoms across a variety of business sectors. He has a passion for training and imparting knowledge to people guiding them to use their systems in the most effective way.

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