I am using 4 of the RCA IR sensor/transmitter cubes ( model# 935) with one reciver going into an IR distribution block. The problem that I am having is that they will work for a while and then the transmitter shows by a small red light that it receiving my IR signal from my remote but what I am trying to control won't do anything. So I unplug the RCA IR transmitter from the wall, move it across the room and then it works. It will work for a quite a while then it will happen again.

I thought maybe I am getting interference from a piece of equipment plugged into the line someplace but I have nothing new that may be problem.

Any suggestions?

John