Samsung TV & Audio QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV ANYNET FAIL Error Fix: Anynet+ (HDMI-CEC) Not Working

Error code ANYNET FAIL on the Samsung TV & Audio QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV means: Anynet+ (HDMI-CEC) Not Working. Samsung Anynet+ (HDMI-CEC) is not detecting or controlling connected devices. Ensure Anynet+ is enabled: Settings → General → External Device Manager → Anynet+ (HDMI-CEC) → On. Power cycle all CEC-connected devices. Unplug and reconnect HDMI cables. Limit CEC chain to 3-4 devices to avoid conflicts. Some third-party devices have limited CEC compatibility. Try disabling CEC on all devices, power cycling, then re-enabling one by one.

The most successful fix is "Replace HDMI Cables and Inspect HDMI Ports" (medium difficulty, ~30 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Replace HDMI Cables and Inspect HDMI Ports") is rated medium difficulty and takes about 30 minutes. Tools needed: Plastic pry tool, Flashlight.

DIY cost: $15-$25. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV has 8 other known error codes, including: 2 BLINKS (Power Supply Board Fault), 5 BLINKS (LED Backlight / Driver Protection Shutdown), 6 BLINKS (Main Board / T-CON Communication Failure), ABL ISSUE (Automatic Brightness Limiter Reducing Brightness), APP CRASH (App Freezes or Crashes), and 3 more.

Error code ANYNET FAIL also appears on 4 other Samsung TV & Audio models: QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV, QN65Q80CAFXZA 65" Class Q80C QLED 4K Smart TV, QN65QN90CAFXZA 65" Class QN90C Neo QLED 4K Smart TV, UN55CU8000FXZA 55" Class CU8000 Crystal UHD 4K Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.