Forcepoint VPN Connection Fails When Hyper-V is Installed

Yep, as the title says.
Your Forcepoint VPN client won’t be able to connect at all. Which is normal as it’s trying to manipulate the physical adapter, while it should only change settings of vSwitch assigned to external communications.
So? On the properties page of the physical adapter, uncheck the box for “Stonesoft VPN Client Driver” and then restart the Forcepoint client.
HTH,