Create Guest Network On Xiaomi Mi Router Ax1800 Fixed [upd] -
This is a known bug on the AX1800. Go to Settings > Guest Wi-Fi and re-save the same settings (change nothing, just click Save). Then, go to System > Restore & Backup > Restore Router to Factory Defaults (only as last resort). After resetting, the first thing you configure must be the guest network before any other complex rules.
You will now see a menu to define how this network behaves. Here is how to fill it out:
You can change the guest password frequently without needing to reconnect all your personal devices.
: Go to Settings > Wi-Fi Settings or Advanced > Guest Network .
If guests connect but get an "Internet may not be available" or "Obtaining IP address..." error, the internal DHCP server is stuck. Log into the web gateway. Go to -> DHCP Server . create guest network on xiaomi mi router ax1800 fixed
I can provide customized troubleshooting steps based on your current setup. Share public link
To create a guest network on the , you can use either the web interface or the Mi Home/Xiaomi Home app . A guest network improves security by isolating guests from your main network's shared devices and files. Option 1: Web Interface Method
Xiaomi regularly releases security patches for the AX1800 that fix vulnerabilities in both primary and guest network routing tables.
: Ensure your mobile device is connected to the Xiaomi AX1800 Wi-Fi . This is a known bug on the AX1800
If the standard toggles don’t fully isolate your guest network, the AX1800 runs a Linux-based OS. You can SSH into it (if developer mode is enabled) and add a manual iptables rule.
Hit or Apply . The router will briefly restart its wireless modules to deploy the new SSID. Method 2: The Web Admin Browser Configuration
If a guest's device is compromised, infected files cannot spread to your primary devices.
Once logged in, click on the tab at the top menu, then navigate to Wi-Fi Settings . Step 3: Configure Guest Wi-Fi Scroll down until you find the Guest Wi-Fi section. Turn the toggle switch to Enabled . Set your preferred SSID and Password . After resetting, the first thing you configure must
Here’s a step-by-step guide to and ensure it’s fixed (i.e., stable, isolated, with a permanent SSID/password — not subject to random changes).
Rotate the guest password every few months, especially after hosting large gatherings.
For a guest network (no random disconnects), perform the following via SSH (enable via MiWiFi developer ROM or exploit).
This is the most direct way to access all advanced settings.