If your AX1800 is set up as a wired AP or a secondary mesh node, the Mi Home app or web interface often disables the guest network toggle entirely.

Setting up a guest network on your Xiaomi Mi Router AX1800 drastically improves your digital security footprint. By using either the Mi Home app or the web portal, you can have a separate, isolated hotspot running in less than five minutes. If you run into roadblocks, checking your operation mode (Router vs. AP) and updating your firmware will resolve almost every common glitch associated with this model.

Ensure the router region is set correctly, as some Wi-Fi channels are restricted in different regions.

: Navigate to the Toolbox tab, select More , and tap on Guest Wi-Fi .

: Tap on your router from the list of connected devices.

If guests cannot connect, turn on .

If the network is inconsistent, reboot the router through the app under "Toolbox" > "Reboot". Important Security Advice

Connect your device to the router using a LAN cable or via the main Wi-Fi network. Open a browser and enter miwifi.com or the default local gateway IP address 192.168.31.1 into the URL address bar. Type in your administrator password to log in. How to Set up a Guest WiFi Network on Your Router

(recommended for “fixed” settings):

To maximize the utility and security of your newly fixed AX1800 guest network, implement these settings:

This is the most direct way to access all advanced settings.