drtweak :
how far is it? you have to under stand that if it is on different breakers you will have a speed drop. I have one client who has the same thing but gets around that much.
I've got an 800 sq ft condo. The modem is all the way on one end and the second powerline adapter is in the living room, near the midpoint of the condo length.
I have one router in my bedroom (which doesn't broadcast that well) and another, older router in the living room, which is plugged into the powerline adapter and is acting as a switch/access point. Plugging my laptop into the older router or into the powerline adapter in my living room either way only gets ~40 Mbps. I am guessing to get closer to 100 Mbps in my living room, I should probably just look into a better router than can broadcast better.