Did you know the Xiaomi Mi Router AX1800 actually supports guest networks? Yes.
You will see identical options to the app, plus one extra:
Create a distinct password separate from your main network. 6. Apply Settings
It effectively creates a separate subnet, preventing guests from accessing any internal devices other than the internet gateway.
: Set your custom Network Name (SSID) and select WPA2-Personal encryption.
A guest network is a separate, isolated Wi-Fi network that provides internet access to visitors without giving them access to your main home network's devices (like computers, printers, and smart home devices). This protects your privacy and security by keeping your primary network isolated from guest traffic.
: Choose WPA2-PSK or WPA3-SAE for optimal security. Avoid leaving it open.
After setup:
Older firmware versions on the AX1800 occasionally suffer from a bug where the guest radio appears enabled but doesn't actually broadcast an SSID.
Tap on the (gear icon) in the bottom right corner of the app.
This crucial security feature ensures that devices connected to the guest network cannot communicate with each other. By enabling AP isolation, you prevent a compromised guest device from infecting another guest device. In most cases, this feature is enabled by default for Xiaomi's guest networks.