If the app cannot find your LG TV or the buttons have no effect, check the following.
- The phone and the TV are on the same Wi-Fi network (watch out for « guest » networks or split 2.4 / 5 GHz bands).
- The TV is turned on.
- You confirmed the « Allow this device » prompt on the TV. If you declined it, reconnect from the app to make it appear again.
- Enter the TV's IP address manually if the scan fails.
- On the TV, make sure LG network control (« Mobile TV On » / « LG Connect Apps ») is enabled.
- As a last resort, restart the TV and your internet router.