More interesting ... and disturbing --- stuff.
This has happened thrice in the last two days. When Windows is Shutdown after the VPN issue, it hangs, as previously stated. Windows grinds away for a long time, but Windows has, each time, rebooted, rather than shutdown and stay that way. This does not happen when the machine is shut down while VPN is up and has not been used during the session. The Reliability Monitor is
UGLY! There are several messages in the following time sequence:
Windows was not properly shut down 1/13/2020 5:48 PM
Windows stopped working 1/13/2020 5:48 PM
Shut down unexpectedly 1/13/2020 5:49 PM
I guess that even though Secure Line VPN 'Exited', there is something left behind that interferes with the Windows Shutdown process. It looks like some kind of crash has occurred, even though there was no intervention (holding down the power button) on my part.
Again, this does not happen for sessions for which VPN is not used.
No more VPN for me till it is fixed .... or I move to a new product.