So if I run a cable from the breaker that controls the socket the first Powerline adapter is plugged into, to the room I need the second adapter with a socket on the to plug the second Powerline...

Yes all clear thanks

Hi I got and understand all that. The bit that I don't understand is why it worked for 3 months on a separate circuit when it should not have worked at all.

Hi I have been using the tl-wpa4226 kit for 3 months now without problems but a few days ago it stopped working, after many hours of trouble shooting i decided to turn off the main trip in the...