I have my ADT Hub mounted on the wall in my Kitchen My Wifi access points are mounted on the ceiling in my loft on the second floor and I have not had any issue. It is about 15 feet down through one floor to get the signal to the hub. Could there be something interfering with your network? The hub connects on the 2.4G network so do you have any Zigbee devices that could be causing a problem? I would check what channel your router is on compared to what the Zigbee is running on and see if there are interfering with each other. You can find more info here: