|Netgear Wifi Extender|
The extender takes the off-air packets and regenerates them so the remote signal is considerably improved. I believe the speed is reduced but we have a very fast connection anyway. It does NOT use the mains wiring to send the signal over.
First impressions are good, with a strong signal now in the main bedroom. Setting up the extender was simplicity itself. We'll see how it works over the next few weeks.
See http://www.amazon.co.uk/gp/product/B009C9FQNQ/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1 .