I have tried every way I know how to get the system to work but to no avail.  I had someone string the line into the adjoining room to be sure one box was at least 20 diagonal feet away from the other box.  I have spend move than an hour, 2 different times trying to get the 2 lights to be green.  One will be green for a second as I am moving it but the box cannot sit in the air.