| Problem | Likely Cause | Solution | |---------|--------------|----------| | Stereo only on 5.1 content | Device not set to bitstream | Change TV audio output to “Auto” or “Bitstream” | | No center channel dialogue | Wrong speaker configuration | Run AVR’s room calibration (Audyssey, YPAO, etc.) | | Surround channels silent but test works | Content is 2.0 or 5.1 downmixed | Check Netflix badge; try a known 5.1 title (e.g., Stranger Things ) | | Atmos badge not showing | Device or AVR doesn’t support Atmos | Verify Premium plan, HDMI 2.0+, and Atmos-capable receiver | | Audio delay (lip-sync) | Processing latency | Adjust AVR’s lip-sync (usually 50–150 ms) or use eARC |