well the one location I showed you is for Mircast and to connect. And i meant connect and not bluetooth.
Regardless,
Settings>>System>>Project to this PC
is to setup Mircast
And you probably have some issue with the wireless connection. Maybe your router settings or incorrect wireless encryption key.
Did you connect it, power cycle your modem and router, restart PC's and power toggle the TV ?????
And if you have WPS turned ON in your Modem/Router, then this is the problem.
Have you also looked in your display settings while it is trying to connect and see if the display or TV shows here.
Also some interference will cause connection issues. Many things can cause interference.