Wi-Fi network extension with the second Xiaomi router: full instructions with schemes and life hacks

Why is Xiaomi’s second router the best solution for Wi-Fi expansion?

Weak Wi-Fi signal in distant rooms, constant connection breaks when watching video in the video 4K Or online gaming -- a familiar situation? Instead of buying expensive mesh systems or repeaters that slow down the speed of the game. 30-50%, You can use the second Xiaomi router as an amplifier, and it's not only a budget solution (especially if you already have a spare device), but also a flexible one: Bridge modes are supported), WDS even a client+point.

In this article, we will discuss the unique features of Xiaomi routers when building extended networks: why Mi Router series models 4A/4C/AX3000 Better suited to this task than budget TP-Link, how to avoid double-digit NAT» (which breaks down online games and IP-The camera, and why the standard repeater mode in the world-routers works differently than the competitors, you will also find step-by-step instructions with screenshots of current MiWiFi firmware (including global and Chinese versions).

Which Xiaomi routers support network expansion?

Not all Xiaomi models can work in Extension Mode. Here is the current list of feature-enabled devices. WDS, Bridge or Repeater (data for 2026):

Model router	Regime. WDS	Bridge mode (Bridge)	Repeater mode (Repeater)	Max: Speed in an extended network
Xiaomi Mi Router 4A Gigabit	✅	✅	❌	300 Mbps (2.4 GHz)
Xiaomi Mi Router 4C	✅	❌	✅	150 Mbps (2.4 GHz)
Xiaomi Mi Router AX3000	✅	✅	❌	574 Mbps (5 GHz) / 300 Mbps (2.4 GHz)
Xiaomi Mi Router AX6000	✅	✅	❌	2400 Mbps (5 GHz) / 574 Mbps (2.4 GHz)
Xiaomi Mi Router AC2100	❌	✅	✅	867 Mbps (5 GHz) / 300 Mbps (2.4 GHz)

⚠️ Attention: Routers with MiWiFi firmware ROM (Chinese version has advanced settings WDS compared to the global versions. 4A Gigabit on Chinese firmware is available to choose the channel manually, and in the global – only automatic mode.

If your model is not in the table, check the mode support in the menu Additional settings → Mode. The alternative is firmware on OpenWRT or Padavan, but it requires technical skills.

📊 What kind of Xiaomi router are you using?

Mi Router 4A

Mi Router AX3000

Mi Router 4C

Another Xiaomi

Not Xiaomi.

Ways to expand Wi-Fi network with the second Xiaomi router

There are three main ways to connect a second router to amplify the signal, each with pros and cons:

🔄 Regime. WDS (Wireless Distribution System – both routers broadcast the same network SSID It's convenient for devices that automatically switch between points. 30-50% due to double data transmission.
🌉 Bridge mode: The second router connects to the first one by cable and expands the network without losing speed. Plus: maximum performance. Minus: you need a network cable.
📶 Repeater mode – the second router relays the first signal, creating a new network (for example, MiWiFi_5G_EXT). Plus: easy to set up. Disadvantage: two separate networks, devices don't switch automatically.

For routers Xiaomi the best choice — WDS (If you need one network, or Bridge (if you can lay a cable), the repeater mode is implemented only in Mi Router models. 4C and AC2100, It works worse than the specialized repeaters.

Than. WDS different from Repeater?

In mode. WDS Both routers exchange data at the channel level, maintaining the original MAC-This is the address of the devices, so you can avoid problems. DHCP double NAT». In Repeater mode, the second router creates a new subnet, which can conflict with the second router. IP-Cameras, printers and some online games (such as Call of Duty or Fortnite).

Step-by-step adjustment of the mode WDS Xiaomi

The instructions are relevant for Mi Router routers 4A Gigabit, AX3000 and AX6000 MiWiFi firmware (including global and Chinese versions) before starting:

Update the firmware on both routers to the latest version

Write it down. MAC-address of the main router (on the sticker or in Settings) → Status)

Make sure that both routers support WDS (see the table above)

Turn off on the second router. DHCP-server (if enabled)

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Step 1: Set up the main router

Connect to the main router's web interface at 192.168.31.1 (or miwifi.com).
Go to Settings. → Wireless mode (Wi-Fi).
Take a picture or write down: Name of the network (SSID) Password Channel (e.g. 6 for 2.4 GHz) Security type (WPA2-PSK or WPA3)

Turn on WDS

Step 2: Set up the second router (Xiaomi) in mode WDS

Reset the second router to factory settings (reset button for 10 seconds).
Connect to it by cable or Wi-Fi (default network: MiWiFi_XXXX, password).
In the web interface (192.168.31.1) go to Additional settings → Mode of work → WDS.
Enter the main router data: SSID — name BSSID — MAC-address of the main router (format) XX:XX:XX:XX:XX:XX) Security type and password

Wireless network settings

Same one. SSID and the password on the main router.
Channel identical to the main channel
Channel width: 20 MHz (for stability)
Turn it off. DHCP-server on the second router (Settings) → Local area network → DHCP-server → Shut down).
Save the settings and restart both routers.

⚠️ Note: If the devices are not connected to the extended network after setting up, check:

Whether the channels on both routers coincide (for example, if the main one is on channel 6 and the second one is on the car, communication will not be established).
Is Firewall disabled on the second router (Settings) → Security → firewall → Shut down).
Is it not used on the main router? WPA3 — Some Xiaomi models do not support it in the WDS.

💡

If the speed on the extended network is low, try manually setting the channel 1, 6 or 11 at 2.4 GHz – they do not overlap and give less interference.

Configure Bridge mode for maximum speed

Bridge mode is suitable if you can lay a network cable between routers, in which case the second router works as a switch. + Access point, no loss of speed. Instructions for Mi Router AX3000 and 4A Gigabit:

Step 1. Connect with cable

Connect the ports LAN Main and second routers with cable (do not use port) WAN router!).
If the second router has 1 port WAN 3 LAN, connect to anyone LAN.

Step 2: Set up the second router

Go to the second router's web interface (192.168.31.1).
Go to Additional Settings → Mode of work → Bridge (Bridge).
In the section Settings of the wireless network set: SSID and password - identical to the main router Channel - the same as the main

Settings → Local Area Network → DHCP- Server → Disable

Save the settings and restart the router.

⚠️ Attention: In Bridge mode IP-The address of the second router will change (for example, to 192.168.31.2). IP Connect to your Wi-Fi network (if it is different from your main network).

💡

Bridge mode is the only way to expand the network without losing speed. 4K-streaming video, online gaming and IP-camera.

Repeater Mode on Xiaomi: When to Use?

Repeater mode is available only on Mi Router 4C and AC2100. It is easier to set up, but has significant limitations:

⚠️ A separate network is created (for example, MiWiFi_EXT), The devices do not automatically switch between them.
⚠️ Speed drops on 50-70% signal-relay.
⚠️ Some devices (such as printers or cameras) may not work on such a network.

When should I choose Repeater?

🏠 You need to quickly amplify the signal in one room (for example, on the balcony or in the garage).
🔌 There is no way to install or use the cable. WDS.
📱 Devices (smartphones, tablets) do not require high speed.

Repeater setup on Xiaomi Mi Router 4C:

Reset the router to factory settings.
Connect to his network. MiWiFi_XXXX.
In the web interface, select the mode of operation → Repeater (Repeater).
Select the main router network from the list and enter the password.
Provide a name for an extended network (for example, MiWiFi_5G_EXT) and keep.

💡 Tip: If Repeater doesn’t work after setting up, try it:

Change the channel on the main router to 1, 6 or 11.
Disable on the main router WPA3 (leave out WPA2).
Reduce the channel width to 20 MHz.

Optimizing the Extended Network: 7 Tips for Stable Work

Even after you set it up properly, you can have problems, like connection breaks, slow speeds, or devices hanging around, and here's how to avoid them:

📡 Placement of routers: The second router should be in the zone of confident reception of the main one (signal level is not lower than the level of the signal). -60 Use the WiFi Analyzer app to check.
🔄 Channels: On 2.4 Use only GHz. 1, 6 or 11 — They don't overlap. 5 GHz, choose channels 36-48 or 149-165 (DFS).
🔒 Security: Turn it off WPS On both routers, this is a vulnerability that hackers exploit.
📦 Firmware: Update both routers. Older versions of MiWiFi have bugs with the software. WDS (For example, in firmware 2.18.56 for Mi Router 4A).
🔌 Power: Connect routers to the network via UPS (uninterruptible power source) – frequent reboots knock down settings WDS.
📱 Roaming: For smooth switching between routers on Android, use WiFi Roaming Scanner, on iOS – Auto Switch WiFi.
🌐 DNS: Hand-stamp. DNS-servers (1.1.1.1 or 8.8.8.8) – this will speed up the loading of sites.

🔧 The problem is IP-cameras or printers? WDS They may not work because of subnet conflict:

On the main router, reserve IP-addresses for cameras (Settings) → Local area network → Reservation of addresses).
Turn off the second router. AP Isolation (Settings) → Wireless mode → Isolation of clients).

Frequent mistakes and their solutions

Even with the right setup, there can be problems, and let's look at the typical problems and how to fix them:

Problem.	Reason.	Decision
Devices do not connect to an extended network	Disparity between channels or security types	Check the settings. SSID, channel WPA2/WPA3 routers
Low speed (less than 10 Mbps)	Weak signal between routers or interference	Move the second router closer to the main router or change the channel to the main router. 1/6/11
IP-addresses are in conflict (e.g. 192.168.31.1 occupied)	DHCP-The server is not disabled on the second router	Turn it off. DHCP on the second router and restart both devices
Online Games Are Lagging or Shutting Down	Double. NAT (routers IP)	Use Bridge Mode or Configure DMZ main-route IP second-second
Wi-Fi is periodically shut down	Conflict MAC-addresses or outdated firmware	Update the software on both routers and check BSSID customized WDS

⚠️ Note: If after setting up WDS The Internet works, but local devices (for example, a printer or a printer) NAS) Inaccessible, check in:

Is it off? AP Isolation on both routers.
Are the devices in the same subnet (e.g, 192.168.31.x).
Does the firewall block local traffic?

FAQ: Answers to popular questions

Can I use the Xiaomi router in mode? WDS with a router of another brand (TP-Link, Asus)?

Yes, but with limitations: Both routers must support WDS (Check the settings. The main router must be on mode. WDS Speed will be lower than using two Xiaomi routers, due to differences in the implementation of the protocol. 💡 Tip: If the main router is TP-Link, set up WDS You can use it, and you can connect Xiaomi as a client, and in reverse order, you can have authorization issues.

How do you check if the second router is actually expanding the network, rather than creating a new one?

Check methods: Connect to Wi-Fi and check MAC-Access point address in device settings (on Android: Settings) → Wi-Fi → [network] → Details. It must match with MAC Start the command ping 192.168.31.1 (IP Main router) from the device connected to the second router. If pings pass, the network is expanded correctly. In the web interface of the main router, check the list of connected devices (Settings). → Status. → Connected devices – customers from the second router should be displayed there.

Why did the Internet speed drop 2 times after setting up WDS?

It's normal for the regime. WDS, As data is transmitted twice: from the main router to the second by air (loss) ~30%). From the second router to the device (more) ~20% loss). 🔧 How do you reduce the loss? Use it. 5 GHz (if supported) - less interference. Reduce channel width to 20 MHz (for MHz) 2.4 GHz, this will increase stability. Place the routers so that the signal level between them is not lower. -60 dBm.

Can I use two Xiaomi routers in Mesh mode?

Officially, Xiaomi routers do not support Mesh (unlike TP-Link Deco or Asus AiMesh).However, there are workarounds: Alternative 1: Configure both routers in mode WDS uniformly SSID and turn on 802.11r (Fast Roaming) in Wi-Fi settings. This will allow devices to switch between points faster. Alternative 2: Switch both routers to OpenWRT and configure 802.11s (Mesh is standard. This requires technical skills. Alternative 3: Buy a Mesh system from Xiaomi Mesh System (e.g. Mi Mesh Router) AX3000), which officially supports seamless roaming.

How to reset the settings of the second router if it is not responding?

If the second router Xiaomi stopped responding 192.168.31.1: Press and hold the Reset button (on the back) for a period of time. 10-15 If the button doesn't work, turn off the power, press the Reset and, without letting go, apply power. 10 After the reset, connect to the network. MiWiFi_XXXX (password on the sticker) and reset the setting. ⚠️ Note: On some models (e.g, AX6000) discharge 20 Don't let the button go ahead of time!