Try this
① Connect the LAN port on the back of the TV to the Internet router or the wall Internet port using a LAN cable.
② Go to the Network settings, select Wired Internet, and verify a successful connection.
If you need to use a static IP address, select [Edit] to edit the IP address.
How to set up a wired network
➔ [2021 WebOS6.0 or later]
Select [All Settings] in the [Settings] menu.
How to set a static IP address in a wired network manually
Similarly, configure the subnet mask, gateway, and DNS server.
Once all the changes are made, press Connect.
➔ [2020 WebOS5.0]
➔ [2019 WebOS4.5]
➔ [2018 WebOS4.0 or before]
When failing to connect to the network
Remove the LAN cable from the TV and test the connectivity by connecting it to your PC.
This guide was created for all models, so the images or content may be different from your product.