Test mic and audio output.
Sometimes a firmware update resets Windows privacy settings. Check Settings > Privacy > Microphone to ensure "Allow apps to access your microphone" is ON. To help you further, could you tell me: hyperxcloudiifirmwareupdaterrev0010 exe file
If you’re a console gamer or looking to fix audio inconsistencies on your PC, updating your HyperX Cloud II Test mic and audio output
consoles, which previously struggled with lower volumes or lack of 7.1 surround sound support. Microphone Fixes updating your HyperX Cloud II consoles
Since HP acquired HyperX, there are now two different versions of the Cloud II—the older "Kingston" era and the newer "HP" era.