Monitor Rotation not selectable

[llorracjon]

Hw/SW
- Windows 10, 64bit
- HP Spectre 15.5" (December 2016)
---- installed with Intel HD Graphics
---- Intel HD Graphics manager panel does not recognize that the USB3 external display is connected
- (from the properties window) = DisplayLink Manager ver 8.1.843.0
- (from the Control Panel programs window) DisplayLink Graphics Driver ver 8.1.848.0
- AOC E1659Fwux external USB3 powered monitor with auto-rotate functionality

Issue:
Unable to enable auto-rotate or force screen orientation rotate on AOC monitor

Description:
In DisplayLink Manager, selection for...
"Lock Rotation of this display" is gray (unchangeable) and selection is "on"/
Otherwise, the AOC monitor appears fully functional

Wants:
To enable my AOC monitor to auto-rotate when the monitor is physically rotated from landscape to portrait.

Steps I have taken:
- Fully uninstalled DisplayLink and re-installed from DisplayLink.com

Any thoughts for steps I have not appropriately executed that is preventing ability to rotate the AOC monitor display either a manual configuration or the automatic auto-rotate feature.?

llorracjon