Access VPN From Log-in Screen
This article will show you how to make a VPN connection from the log-in screen using Cisco’s Start Before Login Module.
Prerequisites
Let’s check if we have the correct program installed:
Open the Control Panel, open Programs, and Features, and look for ‘Cisco AnyConnect Start Before Login Module’. 
Making a Connection
Now that we have the necessary programs installed, let’s get connected.
Go to the Log-in screen and look for the icon of two monitors on the bottom right. If you hover over it with your mouse it should say ‘Network sign-in’ as shown below.
Click on the Network sign-in icon. You should see the following screen.
Sign in to Cisco AnyConnect as you usually would.
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If the connection is successful, you will be thrown back to the login screen. If you look at the bottom right you should notice a new icon that says ‘Disconnect’ if you hover over it.
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Log in normally. If you open up the Cisco Anyconnect app, you’ll notice it’s already running a VPN session.
