Hi there Paul and welcome
Can you tell me please the make and model of your wifi router?
ok, thanks Paul
When you go to connect to the wifi network, does it see your network name in the list? Do you know the name of your wireless network?
Does it see any networks at all Paul?
Can you please remove the power to the TV (so unplug it from the power socket).
Then on the actual TV, hold the power button for 60 seconds then release.
Then wait 10 minutes, connect the power again to the TV, turn it on and tell me please if it is now finds any networks correctly.
Let me know the results please
Perfect Paul and your most welcome