Xiaomi Mi Router AX1800: Complete setup from scratch to advanced features

Dual-band router Xiaomi Mi Router AX1800 has become one of the most popular home networking solutions due to its combination of price, performance, and functionality. With support for the standard Wi-Fi 6 (802.11ax)With four antennas and a maximum speed of up to 1775 Mbps (1201 Mbps on 5 GHz + 574 Mbps on 2.4 GHz), this device can provide stable coverage even in multi-room apartments. However, many users encounter difficulties during initial setup—from simple internet connections to fine-tuning optimization for online gaming or streaming video.

In this article you will find step-by-step instructions by setting up Mi Router AX1800 — from unboxing and physical connection to advanced features like guest networks, parental controls, and traffic prioritization. We'll address common beginner mistakes, explain how to bypass ISP restrictions (such as MAC address binding), and show you how to squeeze maximum performance out of your router. If you've just purchased this device or are looking to reconfigure an existing network, read on.

Preparing for setup: what you need to do before turning on the router

Before connecting Xiaomi Mi Router AX1800 Before connecting to the network, complete a few preparatory steps. This will save time and help avoid common problems like "no internet access" after initial configuration.

• 📄 Check the complete setThe box should contain the router, a power supply (12V/1A), a network cable (LAN), and a quick start guide. If anything is missing, please contact the store.
• 🔌 Select installation location: the router should be located in the center of the apartment, on a raised surface (for example, on a cabinet), away from metal objects and household appliances (microwaves, refrigerators).
• 💻 Prepare your device for setup: smartphone with an app Mi Wi-Fi (Android/iOS) or a computer with Wi-Fi/network cable support. The application is downloaded from App Store or Google Play.
• 📡 Check your connection parameters with your provider.Connection type (PPPoE, DHCP, static IP), login/password (if needed), MAC address binding. This information is usually specified in the contract or personal account.

If you are replacing an old router, don't disconnect it from the internet before completing the new setup. This will allow you to quickly check the functionality Mi Router AX1800 and, if necessary, revert to the previous configuration. We also recommend resetting the old device to factory settings—this will prevent IP address conflicts on the local network.

⚠️ Attention: If your ISP uses MAC address binding (eg. Rostelecom or Beeline), write down the MAC address of the old router or computer that previously had internet access. You can find it in the old device's settings or using the command ipconfig /all in Windows (ifconfig on macOS/Linux). In Mi Router AX1800 There is a MAC address cloning function.

Physical connection and first launch of the router

Now let's move on to practice. Connect Xiaomi Mi Router AX1800 to the network and computer/smartphone:

1. Insert the power supply into the socket and connect it to the connector DC 12V on the back panel of the router.
2. Connect the network cable from your provider (usually blue or white) to the port WAN (it is highlighted in blue).
3. If you are setting up from a computer, connect it to one of the ports LAN (yellow connectors) with the included patch cord. For smartphones, Wi-Fi connection is configured later.
4. Press the power button on the back panel (if there is one) or simply plug the router into a power outlet. The indicator light on the front panel should light up. orange (loading), and in 1-2 minutes become blue (ready for setup).

If the indicator flashes red or does not light up at all, check:

• 🔌 Correct connection of the power supply (not all models support hot swapping).
• 🔄 Network cable integrity (try a different cable or port).
• 🔋 There is power in the outlet (connect another device to check).

After successful activation, the router will create a temporary network. Xiaomi_XXXX (where XXXX are the last characters of the MAC address). Connect to it from your smartphone or find the network in the list of available Wi-Fi networks. The default password is located on a sticker on the bottom of the device (usually an 8-digit combination).

Logging into the web interface and basic internet setup

Setting up Xiaomi Mi Router AX1800 It is possible in two ways: through mobile application Mi Wi-Fi or web interface by address 192.168.31.1We recommend using the web version—it offers more options for fine-tuning configuration. The app is convenient for quick setup, but its functionality is limited.

To enter the control panel:

1. Open a browser (Chrome, Firefox, Edge) on a device connected to the router via cable or Wi-Fi.
2. Enter in the address bar 192.168.31.1 or miwifi.com and press Enter.
3. Enter your username and password to log in. The default is:
   • Login: admin
   • Password: admin or the one indicated on the router sticker.

If the password does not work, reset the router settings using the button Reset (hold it for 10 seconds until the indicator flashes).

After logging in, you'll see the initial setup wizard. It will prompt you to:

1. Choose region (please specify) Russia or Other, if your region is not on the list).
2. Tune Internet connection type (select the one your provider uses).
3. Enter login and password from the provider (if required, for example, for PPPoE).
4. Set a username and password for main Wi-Fi network.

Important: If your provider uses MAC address binding, go to the section before saving the settings. Advanced → Network → MAC Clone and clone the MAC address of the old device or computer. This will eliminate the need to call support to re-register.

Setting up a Wi-Fi network: name, password, and security

By default Xiaomi Mi Router AX1800 creates two networks: on frequencies 2.4 GHz And 5 GHzThey can be combined into one (for convenience) or configured separately (for performance optimization). Let's consider both options.

Option 1: Separate networks (recommended for stability)

This method allows you to manually connect devices to the optimal frequency. For example, smartphones and tablets work better on 5 GHz (high speed, but smaller radius), and smart light bulbs and old laptops - on 2.4 GHz (longer range, but lower speed).

To set up networks:

1. Go to Wi-Fi Settings → Basic Settings.
2. For each frequency (2.4G And 5G) please specify:
   • 📛 Network name (SSID): come up with unique names, for example MyHome_2G And MyHome_5G.
   • 🔒 Password: minimum 8 characters, with numbers and letters. Do not use simple combinations like 12345678.
   • 🛡️ Security type: select WPA2-PSK (the most reliable today).
   • 📶 Channel and width: For 2.4 GHz select a channel 1, 6 or 11 (less loaded), for 5 GHz — 36-48 or 149-165 (depending on device support). Channel width - 20 MHz For 2.4 GHz And 80 MHz For 5 GHz.

Save your settings and reconnect your devices to the new networks.

Option 2: Combined network (one name for both frequencies)

If you don't want to bother with choosing a network, you can set the same name (SSID) For 2.4 GHz And 5 GHzThe router will automatically connect devices to the optimal frequency. However, this method may cause problems for some devices (for example, they may become stuck on a slow network). 2.4 GHz).

To merge networks:

1. IN Wi-Fi Settings → Basic Settings set the same name (SSID) for both frequencies.
2. Make sure the passwords match as well.
3. Enable the option Smart Connect (if available in firmware).

⚠️ Attention: If after merging the network some devices (for example, printers or IP cameras) stop connecting, return the separate ones SSIDSome gadgets do not support automatic switching between frequencies.

How to check Wi-Fi channel load?

Open the app on your smartphone Wi-Fi Analyzer (Android) or NetSpot (iOS/macOS). It will show you which channels in your area are less congested. Select the clearest channel in your router settings to minimize interference.

Advanced settings: guest network, parental controls, and QoS

The basic configuration is sufficient for normal use, but Xiaomi Mi Router AX1800 It also supports advanced features. Let's look at the most useful ones.

Guest network

If you have frequent guests, set up a separate network with limited access:

1. Go to Wi-Fi Settings → Guest Network.
2. Enable guest network for 2.4 GHz and/or 5 GHz.
3. Set a name (SSID) and a password (can be made simpler than the main one).
4. Limit speed (optional) Bandwidth Control), if necessary.
5. Tick ​​the box Enable AP Isolationto prevent guests from seeing devices on your main network.

Parental control

To restrict children's internet access at certain times or block unwanted websites:

1. Go to Advanced → Parental Control.
2. Add a device to the control list (specify its MAC address or select it from connected gadgets).
3. Set up a schedule (for example, blocking the Internet from 11:00 PM to 7:00 AM).
4. Add websites to the blacklist (social networks, games, etc.).

Quality of Service (QoS)

Function QoS Allows you to prioritize traffic for specific devices or data types. For example, you can enable maximum speed Zoom- conferences or online games, while limiting torrents.

To set up:

1. Go to Advanced → QoS.
2. Turn on QoS and select Bandwidth Control.
3. Please indicate the speed of your internet connection (you can check it on speedtest.net).
4. Add rules for prioritization (for example, give high priority to your PC's IP address for gaming).

Firmware update and factory reset

Regular firmware updates Xiaomi Mi Router AX1800 Fixes vulnerabilities, adds new features, and improves stability. Check for updates every 2-3 months.

To update the firmware:

1. Go to Advanced → System Status → Firmware Upgrade.
2. Click Check for UpdatesIf a new version is available, download it.
3. Wait for the process to complete (the router will reboot automatically). Do not turn off the power during the update!

If your router starts to malfunction (reboot frequently, or doesn't save settings), perform a factory reset:

1. Press and hold the button Reset on the back panel for 10-15 seconds until the indicator starts flashing quickly.
2. After rebooting, the router will return to the default settings (login/password - admin/admin).
3. Please set it up again as described above.

⚠️ Attention: After the reset, all user settings (including Wi-Fi passwords and QoS rules) will be lost. Save them in advance as screenshots or export the configuration to Advanced → System Settings → Backup/Restore.

If automatic updates don't work (for example, because Xiaomi's servers are blocked), you can install the firmware manually:

1. Download the latest firmware version from the official website Xiaomi (support section for Mi Router AX1800).
2. Go to Advanced → System Settings → Manual Upgrade.
3. Download the firmware file and wait for the process to complete.

Where can I download the official firmware?

Official firmware for Mi Router AX1800 available on the website mi.com in the support section. Search for the model by the exact name (RA79 for the global version or RA75 (For Chinese). Don't download firmware from third-party sources—there's a risk of getting a virus!

Performance Optimization: Channels, Power, and Mesh Networking

Even after proper setup Xiaomi Mi Router AX1800 may not be running at full capacity. Here are some tips to improve speed and stability:

Choosing the optimal Wi-Fi channel

If you have many neighbors with routers in your building, their networks may interfere. To find the clearest channel:

1. Install the application on your smartphone Wi-Fi Analyzer (Android) or NetSpot (iOS).
2. Check out what channels are on 2.4 GHz And 5 GHz are the least loaded.
3. In the router settings (Wi-Fi Settings → Advanced Settings) select these channels manually.

Setting the transmit power

By default, the router operates at medium power. If the signal is weak in distant rooms, you can increase the power (but this will shorten the device's lifespan and may cause overheating):

1. Go to Advanced → Wi-Fi Settings → Advanced Settings.
2. Find the parameter Transmit Power (Transmission power).
3. Set value High (High) or Maximum (Maximum).

Creating a Mesh Network (If One Router Isn't Enough)

If your apartment is large or the walls are thick, one Mi Router AX1800 It may not be enough for complete coverage. In this case, you can:

• 🔄 Add a second router in repeater mode: connect it via cable or Wi-Fi to the main router and configure it in mode Repeater (in settings Operation Mode).
• 🌐 Use a Mesh system: buy an extra one Xiaomi Mesh Router (For example, AX3000) and connect devices into one network through the app Mi Wi-Fi.
• 📶 Use Powerline adapters: If it is not possible to lay a cable, use adapters to transmit the Internet via electrical wiring (for example, TP-Link AV1000).

To set up a Mesh network:

1. Install the application Mi Wi-Fi on your smartphone.
2. Connect the second router to the first one’s network (via cable or Wi-Fi).
3. In the application, select Add Device → Mesh Network and follow the instructions.

⚠️ AttentionWhen using two routers on the same network, disable DHCP on the second device to avoid IP address conflicts. This can be done in the settings. Advanced → Network → LAN (check Disable DHCP Server).

Troubleshooting: What to do if the internet isn't working

Even after proper setup, problems may arise. Here are the most common ones and how to solve them:

If nothing helps, perform a full reset (button Reset) and reset the router. Also, check for issues with your provider—sometimes internet outages are caused by line outages.

❓ How do I reset my admin panel password if I forgot it?

If you forgot your web interface password Xiaomi Mi Router AX1800, perform a reset by pressing the button Reset (Hold for 10-15 seconds). After rebooting, the login and password will become default: admin/adminAll user settings (including Wi-Fi) will be lost.

❓ Can I use the router without the Mi Wi-Fi app?

Yes, all settings are available via the web interface at 192.168.31.1The app is only needed for initial setup via smartphone or creating a mesh network. For a PC, a browser is sufficient.

❓ Why is my Wi-Fi speed slower than my cable speed?

This is normal: Wi-Fi is always slower than a wired connection due to interference and limitations of the standard. 2.4 GHz the maximum real speed rarely exceeds 100-150 Mbit/s, 5 GHz — 300-500 Mbps. To improve speed:

• Switch the device to 5 GHz (if it supports).
• Reduce the channel width by 2.4 GHz to 20 MHz.
• Change the channel to a less busy one.

❓ How do I connect an IP camera or printer to this router?

Most smart devices (cameras, printers, light bulbs) operate only on the frequency 2.4 GHzMake sure that:

• Net 2.4 GHz included and has a simple name (without spaces and Cyrillic).
• The password contains only Latin characters and numbers.
• The MAC address filter is disabled in the router settings (Advanced → Security → MAC Filter).

If the device does not connect, try disabling encryption (temporarily set No Security), add it to the network and then return it WPA2-P