Hi, have you both plugged the the HDMI cable of the headset and the cable of PC monitor to the ports of Discrete graphics? Have you used any converter/adapter to connect the headset?
You'd better disable the anti-virus software when you installed Piplay.
Anyway, please send ID&Password of Teamviewer software to firstname.lastname@example.org, I would like to assist you remotely. And I will be available after 13 hours.