Prove the hardware path
Microphone TestCheck whether your browser can detect your microphone and receive live audio.
→Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
→Left Right Speaker TestPlay left and right channel tones separately.
→Browser Online Status TestCheck the browser online state, available connection hints, and a short round trip to DeviceOK.
→Go to the closest symptom
Device-specific Discord troubleshooting
Discord Microphone Not WorkingTest the microphone independently, then check mute/deafen state, Discord input selection, input mode and OS permissions.
→Discord Camera Not WorkingVerify the webcam outside Discord before changing video settings or treating the camera as failed.
→Discord Speaker or Headphone Not WorkingSeparate Discord output selection and deafen state from a speaker/headphone path that is silent everywhere.
→Discord Voice Connection or RTC ProblemCheck basic online/round-trip evidence first, then use Discord's own voice connection error guidance for RTC Connecting, No Route and related failures.
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