P.S. I also tried it in RF1 and RF 2. Multiple rooms, multiple channels, around the house, even outside. I turned off the WiFi modem all to no avail. It's because so many people are having this issue that I think there is a general problem. I will be trying to return it tomorrow to the store where I bought it. I'm so disenchanted I think I will try for a refund and seek another solution.