@Tony Thank you for your reply.The thing/s that puzzle me are 1. I d/loaded the Powerline utility and it has an option to ADD an adaptor which implies you can increase the coverage. 2. I found this...

I currently have an AV1200 3-Port Gigabit Passthrough Powerline Adapter,2 units,running perfectly in my home but it would really help if I could add a third unit in a different power outlet. I think...