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haier | smart-tv – WiFi Not Supported / Network connection failure
Error Codes (118): Troubleshooting, Fixes & Prevention Tips explained below.

What Does WiFi Not Supported / Network Connection Failure Mean❓

WiFi Not Supported or Network Connection Failure indicates that the device is unable to connect to a wireless network due to incompatibility with the WiFi standards or network configurations. This issue arises when the device does not support the router’s wireless frequency band (e.g., 5 GHz vs. 2.4 GHz), security protocols, or network settings, preventing successful connection and internet access.

smart-tv - Common Causes of WiFi Not Supported / Network Connection Failure

  • Device does not support the WiFi frequency band used by the router.
  • Router security settings incompatible with the device.
  • Outdated device firmware causing connectivity issues.
  • Incorrect network settings on the device.
  • Router broadcasting hidden SSID or network restrictions.

smart-tv - Steps to Fix WiFi Not Supported / Network Connection Failure❓

  • Check Device WiFi Compatibility

    1. Verify if your device supports the network frequency (2.4 GHz or 5 GHz).
    2. Refer to the device manual or specifications.

  • Switch WiFi Band

    1. If possible, connect to the supported frequency band.
    2. Configure your router to broadcast on 2.4 GHz if the device does not support 5 GHz.

  • Update Device Firmware

    1. Ensure your device firmware is up to date for better compatibility.
    2. Check the manufacturer website for updates.

  • Reset Network Settings

    1. Reset the device’s network settings to default.
    2. Re-enter WiFi credentials and try connecting again.

  • Restart Router and Device

    1. Power cycle your router and the device.
    2. Try reconnecting after both devices restart.

smart-tv - Helpful Tips to Avoid WiFi Not Supported / Network Connection Failure

  • Check device specifications before connecting to WiFi.
  • Keep device firmware updated for compatibility.
  • Configure router to broadcast on common bands like 2.4 GHz.
  • Avoid hidden networks or strict access controls.
  • Restart devices regularly to maintain stable connections.

FAQs About WiFi Not Supported / Network Connection Failure❓

Question: Why won’t my device connect to WiFi
Answer: Your device may not support the router’s frequency band or security settings.
Question: Can I connect if my router uses 5 GHz and device only supports 2.4 GHz
Answer: No, you will need to connect to a 2.4 GHz network or change router settings.
Question: Will updating firmware help with connection issues
Answer: Yes, firmware updates often improve network compatibility.
Question: What should I do if network is hidden or restricted
Answer: Adjust your router settings to disable hidden SSID or whitelist your device.

When to Contact a Technician

If you experience any of the following issues even after completing the recommended troubleshooting steps, please contact an authorized service technician or our support team for further assistance.

  • The same error appears repeatedly after restarting or resetting the unit.
  • Multiple error codes appear simultaneously.
  • The device makes unusual noises, vibrations, or emits a burning smell.
  • The product fails to start, operate, or complete its function despite troubleshooting.
  • There are signs of electrical issues, physical damage, or leakage.
  • An unknown or unlisted error code appears on the display.

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