[UPDATE] LG released a fix for that, needed to manually perform the software update. Follow the link below:
This video shows what happens… Suddenly the TV drops the WIFI connection and won’t connect anymore. Some TV functions become unresponsive (such as Netflix subtitles and menus), and the menu won’t show any options. When I try to connect back to the wifi, it doesn’t work. I need to unplug the TV from the power outlet and plug back in so it will have WIFI again.