I have recently bought a router (TL-WR840N), which I want to provide wifi access to my smart Panasonic TV upstairs. When I try to connect to the internet via the router it does not appear as a wifi so

I have just bought and installed a TL-WR84ON router. I have followed the installation instructions but am unable to do the quick setup, getting a message telling me that I am not connected to my TP-Li