eero Router WPA3 Device Incompatible Error: How to Fix It

Easy 5-10 minutes Low Severity Verified June 2026
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Error Code
WPA3 device incompatible
Brand
Eero
Product Type
networking
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
5-10 minutes
The eero WPA3 device incompatible error occurs when older devices can't connect to your network because they don't support the newer WPA3 security protocol. This is a common issue with devices manufactured before 2018, including older smartphones, laptops, smart home devices, and gaming consoles. The solution is to change your network security setting to WPA2/3 transitional mode, which allows both old and new devices to connect.
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Tools You'll Need

How to Fix Error Code WPA3 device incompatible

  1. Open the eero App

  2. Navigate to Network Settings

  3. Access Advanced Settings

  4. Find Security Settings

  5. Change Security Mode

    Using transitional mode slightly reduces security for maximum compatibility. Only use WPA2-only mode as a last resort.

  6. Save and Apply Changes

    All devices will be temporarily disconnected during the restart process.

  7. Reconnect Devices

  8. Test Connection

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When to Call a Professional

Contact eero support if you can't access the app, if the settings don't save properly, or if changing to transitional mode doesn't resolve connectivity issues. Professional help may be needed for complex network setups or enterprise environments.

Frequently Asked Questions

What devices are incompatible with WPA3?
Devices manufactured before 2018 typically don't support WPA3, including older iPhones (pre-iPhone 12), Android phones running Android 9 or earlier, Windows 7 computers, gaming consoles like PS4 and Xbox One, and many smart home devices like older Ring doorbells and smart thermostats.
Is WPA2/WPA3 transitional mode secure?
Yes, WPA2/WPA3 transitional mode is secure. Newer devices will automatically use WPA3 encryption while older devices use WPA2. This provides good security while maintaining compatibility with older devices.
Will changing to transitional mode slow down my network?
No, changing to WPA2/WPA3 transitional mode won't affect your network speed. The security protocol doesn't impact bandwidth or connection speeds significantly.
Can I update my old device to support WPA3?
Some devices can be updated through firmware or operating system updates, but many older devices lack the hardware capability for WPA3. Check with the device manufacturer for available updates before changing your router settings.
What if transitional mode doesn't work?
If WPA2/WPA3 transitional mode doesn't solve the issue, try temporarily switching to WPA2-only mode to test if the device can connect. If it works, the device definitely doesn't support WPA3. Consider upgrading very old devices for better security and performance.

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