eero Router Guest Network Not Isolating: How to Fix It

Easy 5-10 minutes Low Severity Verified June 2026
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Error Code
Guest network not isolating
Brand
Eero
Product Type
networking
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
5-10 minutes
When your eero router's guest network isn't properly isolating devices, it means guest users can potentially access your main network devices and resources. This security issue typically occurs when the guest VLAN configuration becomes corrupt or misconfigured.
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Tools You'll Need

How to Fix Error Code Guest network not isolating

  1. Open the eero App

  2. Navigate to Settings

  3. Access Guest Network Settings

  4. Turn Off Guest Network

    Guest users will lose internet access during this process. Notify them beforehand if needed.

  5. Wait 30 Seconds

  6. Turn Guest Network Back On

  7. Verify Guest Network Name and Password

  8. Test Guest Network Isolation

  9. Restart eero System if Needed

    This will temporarily interrupt internet access for all users on your network.
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When to Call a Professional

Contact eero support if guest network isolation continues to fail after multiple toggle attempts, if you cannot access the eero app, or if you experience frequent network stability issues that may indicate hardware problems.

Frequently Asked Questions

Why is my eero guest network not isolating devices?
Guest network isolation typically fails when the VLAN configuration becomes corrupt, often due to firmware updates, network resets, or configuration conflicts. Toggling the guest network off and on resets this configuration.
How can I test if guest network isolation is working?
Connect a device to your guest network and try to access devices on your main network, such as shared printers, computers, or network storage. If isolation is working properly, these devices should not be visible or accessible.
Will turning off guest network affect my main WiFi?
No, disabling the guest network only affects guest users. Your main WiFi network will continue working normally for all devices connected to it.
How often should I restart my eero to prevent guest network issues?
eero systems don't require regular restarts, but rebooting once every few months can help prevent configuration issues. The system typically handles updates and maintenance automatically.

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