The most frequent cause: the Wi-Fi adapter driver does not report Wi-Fi Direct capability to the OS. Many generic Windows drivers disable advanced features. Example : Realtek RTL8821CE may work, but with the default Microsoft driver, the netsh wlan show drivers command returns "Wireless Display Supported: No" .

Elias looked at the error message one last time.

Then, with a dull clunk sound from the system speakers, the panel refreshed.

However, Alex had a trick up his sleeve. He pulled out his own phone and showed John a similar presentation using a different wireless display technology, Chromecast. The TV flickered to life, displaying John's presentation in perfect clarity.

Elias stared at the words. They were clinical, detached, and utterly devastating.