Create Guest Network On Xiaomi Mi Router Ax1800 Fixed < Recent >

The Problem: The "Allow guests to access my local network" toggle is OFF, but guests can still ping your PC or NAS.

The Cause: The AX1800 firmware older than version 1.0.50 had a VLAN leak. Traffic isolation was partially broken.

The Fix (Manual AP Isolation):

  • Alternatively, enable Parental Controls for the guest SSID and block all local IP ranges.

    • A Guest Network is only useful if it is isolated. This means guests cannot see your smart TV or computer files.

    How to verify isolation is working:

  • Try to ping a computer on the main network.

    • The Fix: On the Xiaomi AX1800, return to the Wi-Fi Settings page in the web interface. Look for "Guest Network Privileges" or "Network Isolation". Ensure the checkbox "Allow guests to access internal network resources" is UNCHECKED.

    A guest network provides visitors with internet access while keeping your main network and devices private. The Xiaomi Mi Router AX1800 supports guest networks via its web interface and mobile app; this essay provides a clear, fixed step-by-step guide to create a secure guest network, explains configuration choices, and offers troubleshooting and security tips. create guest network on xiaomi mi router ax1800 fixed

    Even after setup, you might face issues. Here are the fixed solutions.

    # Edit /etc/config/dhcp
config dhcp 'guest'
        option interface 'guest'
        option start '50'
        option limit '100'
        option leasetime '24h'
        option dhcpv6 'disabled'