Please follow below steps to project Netflix videos played with Google Cast or Google Chrome Browser:
(1) Make sure both GV1 and Windows PC/laptop are under the same SSID.
(2) Visit Netflix website and select "Customize and control Google Chrome" on your Google Chrome browser.
(3) Select "Cast tab" and BenQ GV1-xxxx to start Google Cast on the Chrome tab. You will see a blue screen icon in the selected tab.
(4) Select Both Screens on the pop-up window.