I just installed a concerto system. This install has 16 zones. all my cat5's are running into the panel, they jump from the panel to the family room cabinetry with rj45 female to female extenders. when i turn it on all keypads light up zones 1-what ever many number zones there are. Then some of them start scrolling up and down, some turn off, some become frozen, i tried this one by one, and they EACH have some sort of issue. I brought the brain and hub home with me from my customers house, i plug in a keypad direct to it and it works fine, when i plug in a keypad direct at his house it works fine for a few minuts then stalls up and scrolls the volume all the way down... His house is located on top af a hill with one hell of ALLOT of broadcasting antennas surrounding it. On his greyfox intercom system i had to order these filters to put on the RJ 45jacks, i tried those on your system and they helped a little but only for a few seconds .. PLEASE HELP, i only have a week to finish this project...