Create Guest Network On Xiaomi Mi Router Ax1800 Fixed !!link!! 〈2026 Update〉

Create a Guest Network on Xiaomi Mi Router AX1800: A Step-by-Step Guide

Are you looking to create a separate network for your guests to ensure the security and integrity of your main network? Look no further! In this blog post, we will walk you through the process of creating a guest network on the Xiaomi Mi Router AX1800.

Why Create a Guest Network?

Before we dive into the setup process, let's quickly discuss the benefits of creating a guest network:

  • Security: By isolating your guests from your main network, you prevent them from accessing sensitive data and devices connected to your primary network.
  • Convenience: A guest network provides a simple way to offer internet access to visitors without having to share your main network's password.
  • Bandwidth Management: You can allocate a specific bandwidth for your guest network to prevent it from affecting the performance of your main network.

Prerequisites

To create a guest network on your Xiaomi Mi Router AX1800, ensure you have:

  • The Xiaomi Mi Router AX1800 with the latest firmware installed
  • A computer or mobile device connected to the router's main network
  • The Mi WiFi app installed on your smartphone or tablet (optional but recommended)

Step-by-Step Instructions

Troubleshooting: If the Guest Network isn't working correctly

If you followed the steps above and the Guest Network isn't appearing or isn't isolating devices properly, here are the fixes:

1. The Firmware Fix: Xiaomi updates its router operating system frequently. If the Guest Network option is missing from the left sidebar: create guest network on xiaomi mi router ax1800 fixed

  • Go to System Settings > System Status.
  • Click Check for Updates. New firmware versions often restore hidden features or fix bugs regarding network isolation.

2. The "Smart Connect" Conflict: If you are having trouble connecting devices to the guest network, check your main Wi-Fi settings.

  • Go to Wi-Fi Settings.
  • If "Smart Connect" (or "Balance") is enabled, the router forces devices onto the best band. Sometimes this conflicts with Guest Network broadcast modes. Try toggling Smart Connect off temporarily to see if the Guest Network stabilizes.

3. The Bandwidth Limit: If guests are slowing down your internet, return to the Guest Network tab. You will often see a "Speed Limit" option.

  • Set the maximum download/upload

The Mission: Setting Up the Guest Network on the Xiaomi AX1800

You have visitors coming over, or perhaps you just bought a smart home device that doesn’t need access to your personal files. You need a Guest Network—a separate Wi-Fi signal that offers internet access but isolates users from your main network.

Here is the complete walkthrough on how to create it, and crucially, how to ensure it is fixed (properly isolated) so your main network remains secure. Create a Guest Network on Xiaomi Mi Router

Method A: Using the Web Interface (Recommended for "Fixing" issues)

  1. Connect your PC to the AX1800 via Ethernet or Wi-Fi.
  2. Open a browser and go to 192.168.31.1 (or miwifi.com).
  3. Log in with your admin password (found under the router).
  4. Click on Settings (Gear icon) -> Guest Wi-Fi.
  5. Toggle ON the Guest Wi-Fi switch.
  6. Set your SSID (e.g., "Home_Guest_5G").
  7. Security: Choose WPA2-PSK (AES) and set a password.
  8. Crucial Settings to avoid "Broken" state:
    • Allow guests to see each other: OFF (Default for security).
    • Allow guests to access my local network: OFF (Unless you need Chromecast/Printing).
    • Band: Select 2.4 GHz only (Legacy devices have issues with 5GHz guest modes on AX1800).
  9. Click Save.

Step-by-step: Create a Guest Network (Web UI)

  1. Connect a computer to the router (Wi‑Fi or Ethernet).
  2. Open a browser and go to the router’s admin page (commonly http://192.168.31.1 or http://192.168.1.1). Log in with admin credentials.
  3. In the dashboard, find and click “Settings” or “Advanced settings.”
  4. Locate “Guest network” (may be under Wireless or Wi‑Fi settings).
  5. Click “Add guest network” or toggle to enable the Guest SSID.
  6. Configure:
    • SSID: Enter a clear name (e.g., “Home-Guest”).
    • Security: Choose WPA2-PSK or WPA2/WPA3 mixed if available. Avoid open (no password) unless you have a captive portal or temporary event use.
    • Password: Set a strong, easy-to-share password (8+ characters).
    • Access type: Select “Internet only” or enable Guest Isolation to prevent access to LAN devices.
    • Duration / Limits (if available): Set session timeout or bandwidth limits to control usage.
  7. Save/apply settings. The router will broadcast the new guest SSID.

Example Quick Setup (Concrete)

  • SSID: Home-Guest
  • Security: WPA2/WPA3 mixed
  • Password: Welcome!2026 (example—use a unique strong password)
  • Options: Guest Isolation = ON; Bandwidth limit = 10 Mbps per device; Session timeout = 24 hours

Part 3: Fixing the "Hidden" or "Missing" Guest Network

If you cannot find the Guest Network option on your AX1800, it is usually due to one of three reasons: Operation Mode, Firmware Version, or Region Lock. Here is how to fix them.

Fix #4: Guests can access your main LAN (Security Hole)

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):

  1. Update firmware to latest (as of writing, 1.0.68 fixes this).
  2. If you cannot update, use the Web Interface to manually enforce isolation:
    • Go to Settings -> Advanced -> Firewall.
    • Add a custom rule: iptables -I FORWARD -i wl1.1 -d 192.168.31.0/24 -j DROP (This blocks guest-to-LAN traffic).
  3. Alternatively, enable Parental Controls for the guest SSID and block all local IP ranges.

Creating a Guest Network on Xiaomi Mi Router AX1800 (Fixed Guide)

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.