Not Supported: Miracast

The laptop screen dimmed. The TV flickered—once, twice. A gray static filled the screen. Then, a flash of blue. Then, the Windows desktop background stretched across the vast expanse of the television.

A panel slid out from the right side of Windows. It scanned the ether. It hunted for signals. It found his neighbor’s Smart Fridge, a printer three floors down, and a Roku he didn't recognize. But it did not find the fifty-inch Samsung television sitting four feet in front of him. miracast not supported

If after all diagnostics the device truly lacks Miracast support: The laptop screen dimmed