Reported Pairing issue are mainly due to the following reasons:
 80% cases due to one of the devices is NOT in pairing mode or left pairing mode and interfered by other pre-paired device.
>>> solution: Read manual and make sure both devices are in pairing mode (also called discoverable mode) - normally LED fast (2-3times/sec) flashing. If necessary, reset both devices and then pair again
Important Notice: It is not suggested to pair Priva II with your receiver during charging. Please UNPLUG it from power during Pairing in Battery Mode.
 10% cases due to internal Software confusion
>>> Solution: reset both unit and pair again
 8% cases due to wireless interferences due to wifi router, Smart TV, Ruko
>>> solution: turn the TV off and then pair
 2% cases due to defective unit.
>>> solution: replacement