How to set up a Wi-Fi router Xiaomi Mi Router AX1800: Complete instruction from connectivity to fine optimization

Xiaomi Mi Router AX1800

Wi-Fi 6

128 devices

all stages of adjustment

What do you learn from this guide? First, how to connect properly. AX1800 To the provider to avoid authorization errors, and secondly, how to set up a dual frequency (2.4 GHz) + 5 GHz) for maximum speed and coverage. Third, we will reveal the secrets of optimization, which will help to get rid of lags in online games and video buffering. IPv6, Guest network and parental control.

If you have just unpacked the box with the router or are trying to reconfigure the old model – this guide will help you avoid typical errors and squeeze out of the Mi Router. AX1800 maximum.

1. Preparation for setting up: what to do before connecting

Before you turn the router on, check the delivery kit.In a box with Xiaomi Mi Router AX1800 must:

• 📦 The router itself with four antennas
• 🔌 Power supply (12V/1A)
• 📶 Network cable (Ethernet, Cat5e higher)
• 📄 Short instructions (usually in Chinese/English)

If something is missing, don't rush to connect the device. For example, using an unoriginal power supply can lead to unstable operation or even a router failure. Also make sure that your ISP provides access using one of the supported protocols: PPPoE, DHCP static IP. This information can be specified in the contract or personal account of the provider.

Another important thing is the router's placement. Mi Router. AX1800 It has four external antennas, but their effectiveness depends on obstacles:

• 📡 1–1.5 meters above the floor (for example, on a shelf or wall)
• 🚫 Away from metal objects, microwaves and other sources of interference
• 🔄 The antennas are better placed at an angle of 45.° uniformly

⚠️ Note: If you connect the router to the fiber optic terminal (ONU), Turn off the Wi-Fi function to avoid network conflicts, otherwise both devices will distribute the Internet on the same frequency, which will lead to interference.

2. Internet connection of the router and initial setting

Now, let's move on to physical connectivity. Follow this algorithm.

1. Connect the power supply to the router and plug it into the socket. SYSTEM It will start flashing orange (meaning the device is ready to be set up).
2. Take the network cable from the kit and connect one end to the port WAN on the router (usually marked in blue), and the other to the port LAN on the modem or directly to the network outlet from the provider.
3. Wait until the indicator is WAN If it flashes orange, check the cable or contact the provider.

You will need a smartphone or a computer to set up further, and we recommend using a wired connection (via the port). LAN router, so you don't have any problems connecting to Wi-Fi during the configuration phase. If you don't have a wired connection, connect to the network. Xiaomi_XXXX (password is indicated on the sticker at the bottom of the router).

Open your browser and type in the address bar 192.168.31.1 or miwifi.com. You will be taken to the authorization page where you need:

• 🔑 Enter the login and password (by default, both fields are admin, if not changed previously)
• 🌍 Select the interface language (Russian is available, but some items may remain in English)
• ⚙️ Click “Next” and wait for the main menu to load.

Check the completeness of the router|Connect the power supply.|Connect. WAN-port|Make sure the indicator is WAN green-burn|Connect to the router via cable or Wi-Fi-->

3. Internet Connection (WAN) setting

This is the most critical step, because if you make a mistake here, the router will not be able to distribute the Internet. From the settings menu, go to the Internet section and select the type of connection your provider uses.

If you don’t know what type your provider is using, check:

• 📄 In the connection contract (usually specified in the section "Technical parameters»)
• 💻 In the settings of the old router (section) WAN internet)
• 📞 Call the provider and clarify (say that you are setting up a new router)

After choosing the type of connection, save the settings and wait for the router to restart. WAN If it's blue, the Internet is successfully connected:

• 🔌 Correctness of cable connection to the port WAN
• 🔄 Restart the router (reset button on the back, hold 5 seconds)
• 📡 Try a different type of connection (for example, choose PPPoE instead of PPPoE). DHCP)

⚠️ Note: If your provider uses a binding MAC-At the address, you will need to clone. MAC This is the old device. AX1800 Go online → MAC-cloning and entering the address of the previous router (indicated on the sticker).

PPPoE (requires login/password)|DHCP (automatic IP)|Static IP (manual)|I don't know.-->

4. Wi-Fi network settings: name, password and frequency

Once you've successfully connected to the Internet, you can switch to setting up your wireless network. From the router menu, select the Wi-Fi (Wireless) section.

• 📛 Change the name of the network (SSID) — It is better to use Latin without spaces.
• 🔐 Set a strong password (minimum 8 characters, with numbers and special signs)
• 📶 Select operating mode (2.4 GHz, 5 GHz or both at the same time)
• 🔄 Enable Smart Connect (automatic switching between frequencies)

Adjustment recommendations:

• 🔒 For 2.4 GHz, choose a channel 1, 6, or 11 – they are least intersected with neighboring networks.
• 🚀 For 5GHz, use 36-48 or 149-165 channels (depending on the region).
• 🛡️ Choose as a type of security WPA2-PSK or WPA3-PSK (If supported by client devices).

Important: If you have many 2.4GHz connected devices (smart light bulbs, cameras, old smartphones), turn off the mode 802.11r (Fast Roaming – it can cause problems connecting some gadgets.

Once you save your settings, the router will restart, connect to the new network with the updated name and password, and if the devices can't see the network,

• 🔄 Restart the router and client device.
• 📵 Make sure that Wi-Fi is not turned off on the device itself (for example, on a smartphone in “On the plane” mode»).
• 🔍 Check if the network is hidden in the settings (Hide option) SSID should be off).

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If you have a dual-band router, name the networks on the 2.4 GHz and 5 GHz in different ways (e.g, MyWiFi_2G and MyWiFi_5G). This way you can manually choose which frequency to connect to, depending on the task (speed or range).

5 Additional functions: guest network, parental control and IPv6

Xiaomi Mi Router AX1800 It supports a number of useful functions that often go unused:

Guest network

If you have frequent visitors, you might want to create a separate, restricted network.

1. Go to Wi-Fi. → Guest network.
2. Enable the option and set a name/password for guest access.
3. In the Access Settings section, note which resources will be available (for example, only the Internet, without access to the local network).

Parental control

If you have children in your home, you can limit your Internet access time or block certain websites:

1. Open it up. → Parental control.
2. Add the device to the MAC-address (you can find it in the network settings on the target device).
3. Set up a schedule (for example, lock from 22:00 to 7:00) or blacklist sites.

IPv6

If your provider supports IPv6, It can be activated on the Internet. → IPv6. It's useful:

• 🌐 Access to foreign resources that have already been transferred to IPv6.
• 🎮 Reduced ping in online games (due to a more direct route).
• 🛡️ Security enhancements (in) IPv6 harder to change address).

To check if it works IPv6, Open a website on any device test-ipv6.com. If the test shows an error, contact the provider to clarify the settings.

6. Optimization of network speed and stability

Even after the basic setup of the Mi Router AX1800 It can be underpowered. Here are a few ways to improve productivity:

Changing the Wi-Fi channel

If you have a lot of neighbors with routers in your home, the networks may overlap, causing interference, to choose the least congested channel:

1. Install Wi-Fi Analyzer (Android) or NetSpot on your smartphone (iOS/macOS).
2. See which channels are used by the neighboring networks.
3. In the settings of the router (Wi-Fi) → Channel settings: Select the least loaded channel.

QoS (Quality of Service)

QoS allows you to prioritize traffic, for example, you can give maximum speed to video streaming or online games.

1. Go to the Supplementary → QoS.
2. Enable the feature and select a profile (such as Games or Videos).
3. Specify the maximum download/return speed (check at speedtest.net).

Firmware update

Xiaomi regularly releases updates for its routers, correcting errors and adding new features.

1. Go to the System. → Firmware update.
2. Click Check for updates.
3. If a new version is available, download and install it (the router will restart automatically).

⚠️ Warning: If the router stopped working after the update (does not respond to 192.168.31.1), reset to factory settings. To do this, press and hold the Reset button on the back for 10-15 seconds until the indicator starts to blink quickly.

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Regular firmware updates not only add new features, but also close security vulnerabilities. AX1800 a critical error was fixed, allowing remote access to the router settings.

7. Solving Typical Problems With Xiaomi Mi Router AX1800

Even after you set it up properly, you can have problems, and let's look at the most common ones and how to fix them.

If the router does not respond to the settings at all (it does not open 192.168.31.1, the indicators do not flash), perform a full reset:

1. Turn off the router.
2. Press and hold the Reset button.
3. Without releasing the button, plug in the power and hold for another 10-15 seconds.
4. Release the button and wait for the reboot (indicator) SYSTEM should catch fire orange).

After resetting, all settings will return to factory, and you will have to configure the router again.

8 Advanced settings: port forwarding, DMZ and VPN

For experienced users of Mi Router AX1800 It offers advanced functions that are useful for:

• 🎮 Hosting a game server (such as Minecraft or CS:GO).
• 🖥️ Remote access to your home PC.
• 🔒 Settings VPN bypassing locks or secure connection.

Port Forwarding (Port Forwarding)

If you need to open a port for external access (for example, for a surveillance camera or a torrent client):

1. Go to the Supplementary → Port forwarding.
2. Add a new rule by specifying:

Save the settings and restart the router.

DMZ (Demilitarized zone)

If forwarding port doesn’t help (for example, for some games), you can assign one device to a game. DMZ. In this case, all incoming traffic will be redirected to it:

1. Open it up. → DMZ.
2. Enable the function and enter local IP-address.
3. Save the settings.

⚠️ Note: Assignment of the device to DMZ It turns off the firewall, which may not be secure, and only use this feature if you are confident that the target device is protected (for example, a firewall is installed on it).

VPN-server

Router backs up PPTP and L2TP VPN. To set up:

1. Go to the Supplementary → VPN-server.
2. Choose a type VPN (PPTP It is easier to set up, but less secure).
3. Set a user name and password to connect.
4. On the client device, set up VPN-connection.

Frequently Asked Questions (FAQ)