SSLVPN Web Client Not Working For Windows 10

We're having an issue trying to get the Fortinet SSLVPN web client working on our Windows 10 machines.

We're able to download the plugin and get it working completely fine on Windows 7, bet when we attempt to use it on Windows 10, after downloading the plugin - the "Connect", "Disconnect", and "Refresh" buttons are all grayed out.

Any ideas?

Thanks.