I just tried to install the latest VPN client on this machine. After the install, the machine sits at 100% CPU utilization for several minutes. Uninstalling the VPN client fixes the problem.
The complete installation procedure was:
1) install non-supported VPN software version from setup oackage to get the configuration data, certificates, , etc installed.
2) reboot and uninstall the older version , leaving the configuration data, and reboot
3) install the latest client.