Latest Teamviewer (as of 2018-01-31) does not allow for unattended connection on Windows 10

Been looking at posts that say this has been resolved but having issues. Purchased two Windows 10 laptops, installed latest TeamViewer available for Personal use.  Made sure to choose unattended.  Setup computername and password to login.  As long as someone is actually logged in and using it, the computer appears available when I login to TeamViewer on my other computer and I can connect to the laptop.  The computer shows as being unavailable after a time after logout or screen lock, but keep the computer from going to sleep (just have the screen turn off after 15 minutes of inactivity, but otherwise the computer stays on...) 

Is there any registry hack or something to do to allow this work in a truly unattended way?