The Xiaomi AX1800, by default, sometimes allows guest network traffic to reach your main LAN. This is a security risk. Here is how to lock it down.
Users search for the "fixed" version because the AX1800 has unique firmware quirks. Here are the solutions.
The Fix:
This usually means your guest network is stuck on 2.4 GHz interference.
Finally, you rename the guest SSID to something ironic like “FBI Surveillance Van 3.” You set the bandwidth limit to 10 Mbps—enough for maps and email, not enough for torrents. You schedule it to turn off at midnight, because boundaries need bedtime too.
You close the browser tab. The router’s LED glows steady blue. Outside, the real world still has no firewall. create guest network on xiaomi mi router ax1800 fixed
But inside, for now, the garden is walled. And it works.
To set up a guest network on your Xiaomi Mi Router AX1800, you can use either the Mi Home / Xiaomi Home app or the Web interface.
A guest network keeps your main network password private and prevents guests from accessing your shared files or smart home devices. 📱 Method 1: Using the Mi Home App This is the easiest method for most users. Open the App: Launch Mi Home on your smartphone.
Select Router: Tap on your Mi Router AX1800 from the device list. Find Toolbox: Tap on the Toolbox icon at the bottom right. Guest Wi-Fi: Select the Guest Wi-Fi option. Enable: Toggle the switch to On. Configure: The Xiaomi AX1800, by default, sometimes allows guest
Network Name (SSID): Give it a clear name (e.g., "Guest_WiFi").
Security: Choose WPA2-PSK (recommended) or "None" for an open network. Password: Set a simple but secure password. Save: Tap OK or Finish to apply changes. 💻 Method 2: Using the Web Browser Use this if you prefer using a PC or laptop. Log In: Open a browser and go to 192.168.31.1 (default). Enter Password: Type in your router admin password. Navigate: Go to Settings > Wi-Fi Settings. Locate Guest: Scroll down to the Guest Wi-Fi section. Activate: Click the Enable toggle. Set Details: Define your SSID. Select Encryption Type. Input your Guest Password.
Apply: Click Save. The router may restart its Wi-Fi signal briefly. 🛠️ Troubleshooting & Tips
Isolation: Ensure "Guest Isolation" is enabled so guests cannot see each other’s devices. Finally, you rename the guest SSID to something
Bandwidth: Some firmware versions allow you to limit the speed for guests to save bandwidth for yourself.
Visibility: If you don't see the Guest Network on your phone, wait 60 seconds for the router to broadcast the new signal. To help you optimize your network further, let me know:
Are you using the Global or Chinese version of the firmware?
Do you need help setting up a Schedule for when the guest network is active?
I can provide specific steps for bandwidth control if you're worried about guests slowing down your gaming or streaming.