Expanding wireless coverage in a large apartment or private home is often a pressing need, especially when a single router can’t cope with thick walls or complex layout. Owners of the Xiaomi ecosystem may face the question of combining two devices into a single infrastructure to ensure stable Internet in all rooms without losing speed.
There are several proven ways to accomplish this task, each with its own characteristics depending on the equipment model and your goals: a cable connection will provide maximum stability, whereas a wireless connection will get rid of unnecessary wires, but can reduce the overall throughput of the channel.
In this article, we will take a closer look at the technical details of the setup, look at the differences between modes of operation and help you choose the best scheme for your situation. The right configuration will allow you to create a seamless network where devices will automatically switch between access points.
Selection of connection scheme and equipment preparation
Before you start setting up, you need to decide on the physical way to connect devices, because this depends on the sequence of actions in the software part. Most often, a wired circuit is used, where the main router distributes the Internet, and the second acts as an access point or switch, expanding the coverage.
The alternative is a wireless connection, which is convenient if the cable is not possible or desirable to run through the house, in which case the second router will receive the signal over Wi-Fi and broadcast it further, operating in amplifier or bridge mode.
You will need a sufficient length of Ethernet cable if you choose a wired option, and access to the web interface or the Mi Home mobile application. Make sure that both devices are serviceable and have up-to-date firmware versions, as some features may not work properly in older versions of the software.
- 🔌 Two Xiaomi routers (main and secondary) with power on.
- 💻 Laptop or smartphone to configure network settings.
- 🌐 Patch cord (network cable) category 5 or higher for connecting devices.
- 📱 Installed Mi Wi-Fi or Mi Home app for easy management.
It's important to understand that when you connect devices to a single network, you create a single logical structure where all the clients are on the same subnet, which allows devices connected to different routers to see each other, which is critical for smart home and local file servers.
Set up the main router and check the parameters
The first step is always to properly configure the main device that is directly connected to the provider and distributes. IP-It's the configuration that will determine the stability of the entire LAN, so you can't ignore this step.
Go to the main router management interface via a browser or application. You need to fix the current IP-Gateway address, subnet mask and range of addresses that give out DHCP-This data will be required to configure the second device to avoid address conflict.
The default gateway address is usually 192.168.31.1 or 192.168.1.1, but it’s better to double-check this in the network settings section. Write down these values or take a screenshot, as the second router will need to assign a static IP from the same subnet but outside the dynamic distribution range.
⚠️ Attention: If IP-The addresses of both routers will be the same (for example, both 192.168.31.1), there will be a conflict, and the network will stop working.
It is also recommended to check whether the DHCP function is enabled on the main device, since in the system being created, it must be active only on one node - the main one.
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Write it down. MAC-the main router address, it may be required to set up anchoring or filter devices on the second device.
The method of connecting LAN-to-LAN: creating a single subnet
The LAN-to-LAN is the preferred circuit for a complete single network where all devices are in the same segment, in which the second router is effectively converted into a switch with Wi-Fi access point function.
To implement connect the cable from LAN-port of the main router LAN-Secondary port: Before the physical connection, you need to go to the settings of the second router (by connecting directly to it) and change it. IP-For example, if the main router has an address of 192.168.31.1, the second router should be 192.168.31.2.
The next critical step is to shut down. DHCP-This will prevent the devices from getting the wrong network settings, and after saving the settings and rebooting, the second router will simply broadcast the signal, and the addresses will be distributed by the host device.
| Parameter | Main router | Secondary router |
|---|---|---|
| IP-address | 192.168.31.1 | 192.168.31.2 |
| DHCP Server | Included | Off. |
| Cable connection | LAN PORT | LAN PORT |
| SSID (Name Wi-Fi) | Home_Network | Home_Network |
To create a seamless roaming effect (although full Mesh requires support for 802.11r/k/v), set the same network names (SSID) and passwords on both devices. However, it is better to choose different Wi-Fi channels so that they do not interfer with each other, for example, 1 and 6 for the 2.4 GHz band.
Using LAN-to-WAN mode to isolate segments
There's an alternative connection method that creates a cascade of networks where the second router forms its own subnet within the first network, which is appropriate if you need to isolate the devices connected to the second router from the main network.
In this case, the cable is connected from LAN-port of the main router WAN-port (blue port) of the second. WAN-The second router interface must be set to Dynamic mode IP" (Dynamic IP), automatically receive an address from the main device.
This configuration is useful for creating a guest network or traffic segmentation, but has its drawbacks: Devices connected to different routers may not see each other (port spreading problems, DLNA, printing) because they are on different subnets.
In addition, there is a dual NAT (Network Address Translation) effect, which can negatively affect connection speed in online games or when working with torrents. For most home-based coverage expansion tasks, this method is less effective than LAN-to-LAN.
⚠️ Note: When connecting through WAN-port, make sure subnets don't match. 192.168.31.x, piece WAN-The interface of the second is better configured to another subnet, for example 192.168.50.x, Avoiding routing conflicts.
Wireless connection and repeater mode (Repeater)
If the cable is not possible, you can use a wireless connection between Xiaomi routers. Current models support the repeater or bridge mode, allowing you to transmit an Internet signal without wires.
To configure this mode, it is most convenient to use the Mi Home or Mi Wi-Fi mobile application. In the control interface of the second router, you need to find the "Mode of operation" or "Wi-Fi repeater" and select the main router network from the list of available ones.
Enter the password from the main network and the device will try to connect, and the speed in this mode will always be lower than with a wired connection, since the radio channel is used for both receiving and transmitting data, which divides the bandwidth in half.
Place the second router in the zone of confident reception of the signal from the first, but closer to the area where you need to gain, if you put it in the dead zone, there will be nothing to amplify, and the speed will drop to a minimum.
Set up a single network name and roaming
To automatically switch between routers when moving around the house, you need to properly configure your wireless network settings. Although standard roaming between different Xiaomi routers without Mesh protocol support does not work perfectly, setting the channels correctly will greatly improve the situation.
Set the same network name (SSID) and encryption type (WPA2-PSK) on both devices. The password must also be identical. The only difference is that they are physically two different transmitters, and the client device (smartphone, laptop) decides when to switch to a more powerful signal.
It is recommended to manually set static channels for Wi-Fi so that they do not overlap. For the 2.4 GHz band, use channels 1, 6 and 11. If the main router is running on channel 1, assign the second channel 6 or 11.
For 5GHz, the situation is easier because of the large number of non-overlapping channels, but the principle remains the same: Avoid using the "Auto" mode for channels if you notice instability, as routers can start "crying" each other, choosing the same frequency.
- 📶 Use the same. SSID Passwords on all access points.
- 🔢 Lock Wi-Fi channels manually to avoid interference.
- 📉 Spread the access points at least a distance. 3-5 metre.
- 📱 Check signal strength at different points in the house with app analyzers.
Frequent problems and ways to fix them
When you set up, you often have common errors that you can fix easily, knowing why, and one of the most common problems is that you can't log into the interface of the second router after you change. IP-address.
If, after the change, IP-The second router's address page is no longer open, check your computer's network card settings. IP automatically or be on the same subnet as the new router address. Also try to clear the browser cache.
Another problem is cyclical reboot or loops on the network, which happens when you accidentally connect two. LAN-Cable a port on the same router or create a ring structure without support STP. Always check the connection scheme before turning on.
If you have Internet on the second router, but you don't have speed, check the quality of the cable. For gigabit speeds, all 8 lives in the RJ-45 connector must be involved. Damage to even one vein can slow down to 100 Mbps.