How to change the channel on the Xiaomi 4A router: a complete guide with recommendations

If your Xiaomi Router 4A is not running smoothly — Internet speeds are slowing, connections are intermittently interrupted or devices are delayed — the problem may be congestion in your current Wi-Fi channel. In urban environments, where there are dozens of networks, routers often conflict using the same frequencies. Changing the channel is one of the most effective ways to restore stability without buying new equipment.

In this article, we will discuss how to choose and change the channel on Xiaomi 4A (including modifications of the 4A Gigabit Edition and 4A 100M Edition), what tools will help analyze the load of air, and why automatic mode is not always optimal, and you will learn which channels are best avoided in Russia and CIS countries due to legal restrictions, and how to check that the changes have really improved the quality of communication.

Why should I change Wi-Fi channel to Xiaomi 4A?

Wi-Fi routers operate on fixed frequencies (channels), and if multiple devices in range use the same channel, interference occurs, similar to a situation where several people simultaneously speak on the same frequency of the radio, the signals are overlapped, and information is lost.

📉 Speed drop – even with a high tariff bar, the real speed of the provider can be 2-3 times lower.
🔄 Frequent connection breaks – devices disconnect from the network for no apparent reason, especially on mobile gadgets.
🕒 High latency (ping) – critical for online gaming, video calling and streaming.
📱 Connection problems – some devices (such as smart light bulbs or speakers) may not see the network.

The Xiaomi 4A has Auto mode on by default, but it doesn't always do the job. The router's algorithm analyzes the air only when it's turned on, not in real time. If a new network comes along or a new environment changes (for example, neighbors have installed a powerful router), the automation won't switch.

📊 How often do you have Wi-Fi problems?

All the time, the net's slowing down.

Sometimes, but tolerably.

Nearby, but not me.

Never, everything works perfectly.

What channels are available on Xiaomi 4A and which ones are better?

The Xiaomi 4A router supports two Wi-Fi bands:

📡 2.4 GHz – 13 channels (in Russia), bandwidth of 20 MHz (recommended) or 40 MHz.
📶 5 GHz – up to 19 non-crossing channels (depending on region), bandwidth up to 80 MHz.

The table below contains recommendations on the choice of channels for Russia and CIS countries (taking into account legislative restrictions and technical specifics):

Range.	Recommended channels	Avoidance channels	Reason.
2.4 GHz	1, 6, 11	12–14	Channels 12-14 are only allowed in Japan and can be in conflict with the equipment.
5 GHz	36–48, 149–165	52–64, 100–144	Channels 52-64 and 100-144 require support for DFS (radar scanning), which can cause delays.
2.4 GHz (40 MHz)	3 or 11	5–7, 9–10	Wide channels block the neighboring ones, increasing interference, and it's better to use 20 MHz.

For most users, the best solution is:

Use 2.4 GHz on channel 1 or 11 (if the devices are small and far from the router).
Switch to 5 GHz (channel 36 or 149) if all devices support this range and are within 10 meters of the router.

💡

Before choosing a channel, check which networks your neighbors use, and applications like Wi-Fi Analyzer (Android) or NetSpot (Windows/macOS) will be suitable for this.

Step-by-step: how to change the channel to Xiaomi 4A

Changing the Wi-Fi channel on Xiaomi 4A can be done in two ways: via the web interface (from a computer) or the Mi Wi-Fi mobile application.

Method 1: Through a Web Interface (from a PC)

Connect your computer to the router via cable or Wi-Fi. Open your browser and type in 192.168.31.1 (or miwifi.com). Press Enter.
Enter your username and password (the default is admin and password from the sticker on the router). If you have changed them, use current data.
Go to Settings → Wi-Fi (or Advanced Settings → Wi-Fi in the English version of firmware).
In the 2.4G Wi-Fi or 5G Wi-Fi box (depending on the range), find the Channel field. Auto is the default.
Select the channel you want from the drop-down list (e.g. 6 for 2.4 GHz). For 5 GHz, you can also specify the channel width (20/40/80 MHz).
Press Save. The router will restart and the changes will take effect.

Selected channel from the recommended (1, 6, 11 for 2.4 GHz) |

Channel width does not exceed 40 MHz for 2.4 GHz|

Name of the network (SSID) free of special symbols|

Network password is not shorter than 8 characters|-->

Method 2: Using the Mi Wi-Fi app (from your phone)

Install Mi Wi-Fi from Google Play or the App Store. Connect your phone to the router network.
Open the application and log in (use the same data as for the web interface).
On the main screen, tap the gear icon (⚙️) top-right.
Select Wi-Fi Settings → Additional settings.
In the Channel section, uncheck the Auto and select the channel manually. Save the changes.

What if the Internet disappears after changing the channel?

If the network disappears or the Internet does not work after changing the channel: 1. Make sure that the selected channel is allowed in your country (for example, channels 12-14 in Russia are not supported by most devices). 2. Try to return the settings to Auto and restart the router. 3. Check if the new channel conflicts with other networks (use Wi-Fi Analyzer). 4. If the problem persists, reset the router to factory settings (Reset button for 10 seconds).

How do you know if the new channel is working better?

Changing the channel is not a guarantee of improvement, so it's important to check the results.

📊 Speed Test – Use services like Speedtest or Fast.com. Run the test before and after changing the channel, compare ping, download and upload.
📶 Stability check – connect multiple devices (smartphone, laptop, smart speaker) and observe the connection for 1-2 hours.
🔍 Interference analysis — re-scan the airwaves using Wi-Fi Analyzer. If new networks appear on the selected channel, another change may be required.

If the speed has not increased or the connection remains unstable, try:

Change the channel to another of the recommended channels (for example, from 1 to 11).
Reduce the channel width to 20 MHz (especially for 2.4 GHz).
Disable neighboring devices that may cause interference (microwaves, cordless phones).

💡

The optimal channel is not always the freest channel, but it is important that it does not overlap with neighboring networks and matches the capabilities of your devices.

Frequent Channel Change Mistakes and How to Avoid Them

Even the most experienced users sometimes make mistakes that make all the effort impossible.

⚠️ If you choose a 12-14 channel in the 2.4 GHz band, some devices (especially older smartphones or smart appliances) may not see your network.

🔄 Ignoring regional restrictions – for example, using 52–64 5GHz channels without support DFS It can cause the router to automatically shut down when radar is detected.
📶 Too wide bandwidth – choosing 40 MHz or 80 MHz at 2.4 GHz increases interference and can reduce speed for neighboring networks (and yours too).
🔒 Forgotten password – after changing the channel, some devices may require you to re-enter the password!
📱 Device incompatibility – if you have gadgets that only support 2.4GHz (like smart sockets), don’t turn that range off completely.

Another common mistake is not checking results, and many users change channel and think the task is done without testing the actual improvement, and use tools like Wi-Fi SweetSpots (Android) or inSSIDer (Windows) to objectively assess the change.

Additional settings for maximum stability

If the change of channel did not give the expected effect, try to optimize other parameters of the router:

🔄 Wi-Fi mode - in the settings of Xiaomi 4A You can choose a standard 802.11 b/g/n (for 2.4 GHz 802.11 a/n/ac (for 5 GHz. For modern devices, it's best to leave n/ac, If you have old devices, enable compatibility with b/g.
📡 Transmission power – in some firmwares, signal power can be adjusted (for example, High/Medium/Low). In urban settings, high levels can interfere with neighbors, so sometimes it’s better to choose Medium.
🔒 Network Protection – Make sure you are using WPA2-PSK or WPA3 (not WEP Weak security can cause third-party devices to connect and speed to fall.

Also, you should pay attention to the physical placement of the router:

🏠 Place it in the center of the apartment, not in the corner.
🚫 Avoid proximity to metal objects, mirrors and thick walls.
📶 The antennas should be directed vertically (if the devices are on the same floor) or at an angle (for multi-storey buildings).

💡

If you have a dual-band router, give the networks different names (e.g., a different router, MyWiFi_2G and MyWiFi_5G). This will help devices automatically connect to the optimal range.

FAQ: Answers to popular questions

🔹 Can I use channels 12-14 in Russia?

Technically, yes, but they are not officially certified for use in Russia and Europe, and many devices (especially those released for the European market) do not support these channels, so your network may not be visible.

🔹 Why did the speed increase after the change of channel?

There may be several reasons: The channel you choose is still overloaded (check with Wi-Fi Analyzer); the problem is not with the channel, but with the router itself (e.g., overheating or outdated firmware); the provider limits the server-side speed (check the tariff).

🔹 How to Reset Your Router Settings If I Forgot My Password?

Press and hold the Reset button on the back of the router for a period of time. 10–15 After that, the router will return to the factory settings (login / password — admin/sticker).

🔹 Should I change the channel to 5 GHz?

The 5GHz band is less crowded but has less coverage. If all your devices support 5GHz and are close to the router, changing the channel can improve speeds. Otherwise, it's better to optimize 2.4GHz.

🔹 How often should I change the channel?

Usually, you only need to set up the optimal channel once, but if you have many neighbors with Wi-Fi or notice a deterioration in communication, check the air every 3-6 months.