How did you come to the conclusion that it is not working? It's a silly question I know, but gotta ask just in case, have you switched it on from the bottom of the audio station?
Also, some people are under the misconception that it is the same as conventional 'Noise Cancelling'. When ENC is enabled, the mic on the audio station detects noise and filters that out so that your voice is clearer (to others) when you speak. This feature is not for reducing environmental noise in what you hear from the Strix 7.1.
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FPS, Racing, and VR Gamer / Tech Enthusiast / ROG Admin