Cisco VPN client (5.0.07.0290) has stopped connecting to the VPN server. It errors out with "Reason 442: Failed to enable Virtual Adapter.". I had VirtualBox installed. VPN worked in the 6+ week ago ...

* The file you need to install is going to be named anyconnect-gina-win-2.5.2019-pre-deploy-k9.msi , versions can vary and should match the anyconnect version but this is the file you should use when ...