To turn off wifi, click ‘Set’ button to enter settings. Use the down arrow key to navigate to internet click ‘OK’ use the right arrow key to navigate to the networks and use the up arrow key to navigate to the toggle switch next to advanced WiFi and click ‘OK’. To exit click the back arrow button. Reboot your TV by switching the power button to off for 20 seconds and switching the power back on. If necessary, reboot fmTV by unplugging for 20 seconds and then plugging back in.