I have had multiple ZigBee-based RTI control systems in the field with rock solid reliability [save for one bad round of firmware] for a decade. One of my long time clients added a wireless DirecTV client transmitter to an A/V cabinet I installed, within 4 feet or so of the system's ZigBee transceiver. Since then, he complains that the system locks up and the XP-6 has to be rebooted once a month and that commands occasionally hang [like volume ramping].

Has anyone experienced interference issues with ZigBee and these transmitters?

TIA