When first hooking up sound bar it would just keep updating and starting over at language screen, after a factory reset it will no longer connect to the WiFi. It shows on my tv as connected but produces no sound. This is not a connection issue as my Roku tv works fine with the same network
What input on the tv is it connected to? Do you have it connected to Hdmi-ARC? Go into the tv menu and refresh the hdmi-cec devices connected to it.