① WiFi signals work best in the 2.4 GHz frequency range. ② A distance of 16 feet (5 meters) or shorter is recommended for the WiFi signal from the Internet router to the TV. ③ If the WiFi is not detected, turn on the mobile hotspot near the TV. If the TV can find the mobile hotspot, we recommend: a. Install a WiFi signal booster. b. Install the router outdoors.