How to connect the Xiaomi 4A router: the full guide

Installing modern networking equipment often seems like a challenge at first glance. In the case of the popular Xiaomi Mi Router 4A, the setup process is as simple as possible for the end user, but requires attention to the details of the cable connection. The correct initial configuration will ensure stable Internet speeds in all rooms of your home or apartment.

Before you go to the software part, you need to physically prepare the device for operation. Make sure that the supply includes a power supply with the appropriate voltage, a network cable (usually yellow) and the router itself. It is important not to confuse the WAN and LAN ports, because this depends on whether you will have access to the WAN after you turn on.

This router model supports dual-band network, which is a huge plus in high-noise apartment buildings. Smart device allocation between 2.4 GHz and 5 GHz will avoid “failures” of speed when watching 4K video or online games. Below we will discuss in detail each step, from unpacking to fine-tuning security.

Preparation of equipment and physical connection

You start the installation process by looking at the back of the device, and you'll see a few connectors that are colored differently for easy identification, and the blue port is labeled WAN, which is where the provider needs to signal from the external network, and the yellow LAN ports are designed to connect desktop computers, TVs, or game consoles via cable.

Connect the power supply to the socket and the Power connector on the router body. The indicators should light up, signaling the power supply. If the system indicator flashes orange or red, this may indicate no firmware or failure when booting, but in most cases, the first time you turn on, orange light will turn on, which will change to blue after successful initialization.

💡

Use only the original power cable that comes with the kit, as improper voltage can damage the device's power controller.

Now, take the Ethernet cable you most likely got from your ISP when you signed up, and one end of that cable is inserted into the ISP port (if it comes out of the wall), and the other end is inserted into the blue WAN port on the Xiaomi router, and if you have a cable modem, connect it to the blue port of the router.

Primary configuration via web interface

Once the cables are physically connected, you need to switch to software settings, and you can use any browser on your computer or smartphone to do this. Open the address bar and type in the standard one. IP-Device address: 192.168.31.1 or domain name miwifi.com. If you are connected to a router but the page does not open, check your settings DNS device.

When you first log in, you will be asked to select the interface language. Please note that global firmware versions have English and Russian available, while Chinese versions (CN Version) can be entirely Chinese. In the latter case, it is recommended to immediately reflash the device to the global version or use a translator in the browser.

The system will automatically diagnose the type of connection, and in most cases, the router will determine the type of connection (Dynamic). IP), But sometimes you need to manually enter parameters. MAC-At the address, you will need to clone. MAC-address of the old router or computer from which the network was previously logged in.

Set up Wi-Fi network and security passwords

The key stage of the configuration is the creation of a wireless network. Xiaomi Router 4A model allows you to configure two frequency bands: 2.4 GHz and 5 GHz. You can combine them under one name (Smart Connect function) so that the router chooses the optimal frequency for the client, or divide them by specifying different names (SSID).

For network name (SSID), it is better to use Latin letters to avoid display problems on older devices. The password should be complex: use a combination of letters of different register, numbers and special characters. The type of encryption must be set to WPA2-PSK or WPA3 if all your devices support the new standard.

Remember to change the password to log into the router's control panel, which can be the default password for Wi-Fi or blank, which is a security hole, and come up with a unique code that will be difficult for outsiders to guess.

Configuration of PPPoE and L2TP connection

Many providers in the CIS use PPPoE to authorize subscribers, in which case the router must independently connect to the provider’s network, eliminating the need to start a connection on each computer.

The window that opens will require you to enter the username and password that the provider has issued in the contract, which is sensitive to the letter register, so enter them carefully. Also, you often need to specify the MTU (Maximum Transmission Unit), the standard value is 1472 or 1492 bytes, but if you have problems opening some sites, try changing this setting.

Once you have entered all the data, click Save or Connect. The router will try to establish the connection. If all the parameters are entered correctly, the Internet indicator will light up in blue, and the status will show the connection's time and the resulting data will be stored in the connection. IP-address.

Advanced settings and functions of the router

Modern Xiaomi routers have many useful features hidden in the menu of additional settings, you can set up a guest network for visitors so that they do not have access to your personal files on the local network, and a parental control feature is available to limit Internet access time for children's devices.

For fans of torrents and download files to external drives, a function is provided USB-By connecting a flash drive or hard drive to a USB-In the port of the router, you can share files over the network or configure the download of files directly by the router (if supported by firmware.

In the Settings section → Status can see a list of all the connected customers, and it's convenient to monitor who's using your Wi-Fi, and if you see an unknown device, you can lock it down. MAC-Address or change Wi-Fi password, which will force all users to disconnect.

Updating the firmware and restoring access

Regular updates to the router software are key to stable operation and security. Xiaomi periodically releases patches that close vulnerabilities and improve compatibility with various devices. You can check for updates in the Settings → Upgrade section.

⚠️ Attention: During the firmware update process, it is strictly forbidden to turn off the router from the outlet or interrupt the connection. This can lead to the "bricking" of the device, after which it will be possible to restore it only through soldering of the memory chip or using the device. UART-console.

If you forget your Wi-Fi password or the administrative panel, you'll have to reset to factory settings. To do this, find a small hole on the router that says Reset. Take a clip or a needle, press a button inside the hole and hold for about 5-10 seconds until the indicators blink.

In some cases, especially when working with Chinese versions of routers, it may be necessary to manually install global firmware through the Internet. USB-The firmware file with the.bin extension is downloaded from the official website, renamed to miwifi_4a_all.bin (model 4A) and placed in the root of the flash drive with the file system FAT32.

💡

Timely firmware updates eliminate 90% of communication breakdowns and low Wi-Fi speeds.

Frequently Asked Questions (FAQ)