Samsung TV & Audio UN55CU8000FXZA 55" Class CU8000 Crystal UHD 4K Smart TV ERROR 118 Error Fix: SSL/TLS Connection Error

Error code ERROR 118 on the Samsung TV & Audio UN55CU8000FXZA 55" Class CU8000 Crystal UHD 4K Smart TV means: SSL/TLS Connection Error. The TV SSL/TLS certificate validation failed when connecting to a secure server. The TV date/time may be incorrect, causing certificate validation to fail. Check Settings → General → System Manager → Time → Clock and ensure the date/time is correct. Enable auto-sync if available. A factory reset may be needed if the certificate store is corrupted. Firmware updates include updated root certificates.

The most successful fix is "Perform Factory Reset and Update Firmware to Refresh Certificate Store" (hard difficulty, ~45 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Perform Factory Reset and Update Firmware to Refresh Certificate Store") is rated hard difficulty and takes about 45 minutes. Tools needed: TV remote.

DIY cost: $0. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio UN55CU8000FXZA 55" Class CU8000 Crystal UHD 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), ANYNET FAIL (Anynet+ (HDMI-CEC) Not Working), APP CRASH (App Freezes or Crashes), and 3 more.

Error code ERROR 118 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, QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.