@David-TP thanks for the link - but it doesn't answer my question. I understand it is possible to add additional extenders (and only require one adapter that is connected to the router), but I'm...

@donalcrowley thank you for your reply, do you know is there any other extender I can add - for example the TP-Link TL-PA7017 can this be added to my TL-WPA8631P Kit ...or does it have to be another...

I have TL-WPA8631P Kit (AV1300 Powerline) - can I add additional Extenders (which ones should I get?)