The following instructions are for computers NOT on Jamf Pro (Mason Self Service). If your computer is on Mason Self Service, the Cisco AnyConnect VPN should already be installed; however, if it is not present in your Applications menu, follow the instructions below.
Open the Legacy Cisco AnyConnect client (version 4.4 or earlier).
WARNING: If you are running macOS Mojave, do not try to open the Legacy Cisco AnyConnect client (version 4.4 or earlier). Instead, Download the New Cisco AnyConnect client (version 4.6 or newer).
Log in to vpn.gmu.edu in the Cisco AnyConnect client.
If you are running macOS Sierra or High Sierra, you will see the following prompts:
Authorize your Duo Two-Factor Authentication notification.
Select Open Security Preferences from either prompt. (Both will bring you to the correct preference window) in Step 3.
On the Security & Privacy preference window, you will see the following message. Select Allow and enter your local Mac password if prompted (you may use TouchID if your Mac supports it).
You should see the following message. Select Dismiss.
Note: If your first connection attempt is unsuccessful, re-open AnyConnect and log in again. (You can tell that the connection is active and secure once you see the secure padlock icon over the AnyConnect symbol in your toolbar.)