How to get a wi fi extender?

[gg30340]

If your TV can see the signal it should be able to connect.

It may be having a problem with the Smarthub having 2.4GHz and 5 GHz signals, that is why you are seeing the 5GHz with the same name.

You could try turning the 5GHz off in the Smarthub and this will just have the 2.4GHz for the TV to connect to. Once it has connected you can then turn the 5GHz back on.

To turn off the 5GHz you need to log onto the BT Smarthub. Enter   192.168.1.254 in your web browser address bar. You will probably get a security warning but just ignore that and click through the warning and click on "Advance" then "Proceed".

Once the hub page opens click on the "Wireless" section then enter the Admin password fond on the hubs label. This will open the wireless section. Click on "Change Settings" and click on the 5GHz to turn it off and click save.

Try and connect your TV. Once it connects you can turn the 5GHz back on by reversing the above procedure.

EDIT: I re-read your last post and I see that you are connected using WPS. If you are connected you do not need any extenders/adaptors and you can ignore this message. 

[licquorice]

The whole point of the powerline adapters I linked to is that they use the mains wiring, you don't need to run a cable.

[Crimliar]

As to how far can WiFi reach, it depends on how your house is built.  Modern partition walls provided they are not filled with foil coated block insulation, then a single router will cover the whole house.  Older houses with internal brick walls, the WiFi won't travel though the walls so well, but often does quite well through floors.  If you live in Edinburgh and have walls made of granite, then you'll be lucky to pick up WiFi in the next room!