Modify the IP address on an LG Smart TV by accessing the Network Settings menu and selecting the Manual IP Setting option in the IP Mode section. After selecting the option, use the remote to input the four digits manually in the IP Address field.
To access the Network Settings menu, press the Home button on the remote control, select the Setup option, select Network and press Enter. After that, select the Wired option in the Network Setting field, and input the desired IP address in the appropriate field. To remove the previous settings before inputting the new IP address, select the Resetting option in the Network Setting field.