I see four items on the AW920H drivers page that might apply to your issue =AWCC 5.5.26.0AW920H Headset firmwareAW920H Dongle firmwareAW920H Pairing Tool Update to the AWCC 5.5.26.0. Are the two firmware installed? Did you test the Pairing Tool?
Windows 11 (21H2), AWCC v5.5.14, updated both AW920H and dongle firmwares.
m15 R7, AW920H not detected in AWCC