Netgear Router Error Code 4: How to Fix It

Easy 10-20 minutes Medium Severity Verified June 2026
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Error Code
4
Brand
Netgear
Product Type
networking
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-20 minutes
Error code 4 on your Netgear router indicates that the 2.4GHz radio is not transmitting. This means devices may not be able to connect to the 2.4GHz band, though the 5GHz band might still work. Follow these steps to restore your wireless network.
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Tools You'll Need

How to Fix Error Code 4

  1. Perform a Power Cycle

  2. Check Router LEDs

  3. Access Router Settings

  4. Update Router Firmware

    Do not power off the router during firmware update.

  5. Perform Factory Reset

    This will erase all custom settings like WiFi passwords and port forwards. Back them up if possible.

  6. Check for Overheating

  7. Contact Support or Replace Router

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When to Call a Professional

If you've completed all steps and the 2.4GHz LED remains off or error persists, the router likely has a hardware failure. Contact Netgear support if under warranty, or purchase a new router.

Frequently Asked Questions

What does Netgear error code 4 mean?
Error code 4 indicates that the 2.4GHz radio on your Netgear router is not transmitting. This may prevent devices from connecting to the 2.4GHz band, but the 5GHz band might still work.
Can I still use the 5GHz band if 2.4GHz is down?
Yes, typically the 5GHz band operates independently. You can still connect devices that support 5GHz until the 2.4GHz issue is resolved.
Will a factory reset fix error code 4?
A factory reset can resolve software-related issues, but if the problem is caused by hardware failure, it will not fix it. Try the reset after backing up your settings.
Is error code 4 covered under warranty?
Yes, if your router is within the warranty period and the error is due to a hardware defect, Netgear should replace or repair the unit. Contact support with proof of purchase.
What should I do if I see error code 4 on a new router?
If the router is brand new and shows error code 4, it may be defective. Contact Netgear support or the place of purchase for a replacement.

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