I had posted a message on this problem. I upgraded the firmware on the unit 2 or 3 months ago and have had no problems at all since. There has been no need to change the channel. Anyone havng...

Count me as another that bought this piece of m9 plus junk. I bought three of these things in a kit and have a basement, main and a loft and this system is total junk and unreliable. Constant...