How to improve Wi-Fi on Xiaomi: optimization methods

Smartphones of the brand Xiaomi are renowned for their value for money, but users often experience unstable connections or slow data transfer speeds. The problem may be due to software limitations in the shell. MIUI, as well as incorrect network protocol settings. Understanding the operating principles of a wireless module allows you to significantly improve connection quality without purchasing new equipment.

In most cases, low speed is caused by frequency band congestion or conflicting power saving settings. Modern algorithms traffic optimization They can mistakenly block background app activity, leading to connection drops. Proper phone configuration can bypass these restrictions and maximize network performance.

Before attempting complex troubleshooting, it's best to rule out common causes of internet failures. Check if the internet is working on other devices connected to the same access point. If the problem only occurs on your device, it could be due to software issues or a faulty antenna.

Diagnostics of the current network state

The first step should always be a thorough diagnostic to determine the actual connection parameters. Standard indicators on the phone screen don't provide a complete picture of signal quality and interference levels. For detailed information, use the system's built-in tools. Android.

Go to the settings menu and select the item Wi-FiClick on the arrow or your network name to see detailed information. Pay attention to the parameter Channel frequency and the signal level in dBm. The closer the value is to zero, the better the signal; values ​​below -80 dBm are considered critical.

• 📡 Signal level: Ideally it should be above -60 dBm for stable operation.
• 📶 Channel width: affects throughput, but increases sensitivity to interference.
• 🔒 Security type: Outdated encryption protocols can slow down your connection.

If you notice that your speed drops at certain times of day, this may indicate airtime congestion from neighboring routers. In such cases, the router's automatic channel selection may be ineffective. The use of 2.4 GHz bands in multi-family buildings often leads to data packet collisions., which requires manual intervention in the settings.

⚠️ Attention: If the signal level is constantly below -85 dBm even near the router, there may be physical damage to the antenna module or oxidation of the contacts inside the case.

Configuring DNS to speed up response times

One of the most effective measures to speed up page loading is changing DNS servers. Providers often use their own domain name servers, which can be slow or subject to filtering. Switching to a public and fast DNS Google or Cloudflare capable of working miracles.

To perform this operation, go to the section Settings -> Wi-FiClick the gear icon or arrow next to your network name. Find the field IP settings and change the value from DHCP on Static (or manually). In the DNS 1 and DNS 2 fields that open, enter the addresses of the fast servers.

After entering the data, be sure to save the changes and reconnect to the network. The system may ask you to confirm the network profile change, which you must agree to. Now your phone will access website addresses directly from fast servers, bypassing slower ISP nodes.

It's worth keeping in mind that a static IP address may conflict with your router settings if the desired value is already occupied in the address pool. In the field IP address Leave the value suggested by the system or change the last digit to any free one to avoid address conflicts in the local network.

Optimization of frequency ranges

Modern smartphones Xiaomi They support two main frequency bands: 2.4 GHz and 5 GHz. The former offers greater range and penetration, but is susceptible to significant interference from household appliances. The latter offers higher speeds but has a shorter range.

A "Prefer 5 GHz network" option is often available in Wi-Fi settings. Enabling this setting forces the phone to ignore congested 2.4 GHz networks when a 5 GHz signal is available. This is especially useful for watching high-definition video and online gaming, where low latency is essential.

• 🚀 Speed: The 5 GHz band provides data transmission of up to 1 Gbps and higher.
• 🏠 Coating: 2.4 GHz passes through walls and ceilings better.
• 📉 Interference: Microwaves and Bluetooth devices operate at a frequency of 2.4 GHz.

If your router broadcasts a single network with combined frequencies, your phone may spontaneously switch between them, causing brief disconnects. It's recommended to separate the networks in your router settings by giving them different names, for example, Home_WiFi And Home_WiFi_5GThen connect your phone to the desired network manually.

Why is 5 GHz worse at passing through walls?

A high frequency signal has a shorter wavelength, making it more susceptible to absorption by solid objects such as concrete and brick.

For owners of older routers that don't support 5 GHz, the only option left is to optimize operation in the 2.4 GHz band. In this case, it's critical to select a clear channel in the router settings to minimize interference with neighboring access points.

MIUI Power Saving Management

shell MIUI is known for its aggressive power-saving policy, which often interferes with the normal operation of network modules. The system may forcibly disable Wi-Fi when the screen is locked or limit background data transfers for apps you rarely use.

To fix this, you need to go to the section Battery and find the power saving settings. Select the mode Performance or Balanced, avoiding power saving mode when a stable connection is essential. It's also worth checking the settings for specific apps that require constant network access.

Pay special attention to the "Limit background activity" feature. If it is enabled globally, instant messaging and email clients may not receive notifications on time. Go to Settings -> Applications -> Permissions -> Autostart and activate the required programs.

⚠️ Note: The power saving menu interface may vary depending on the MIUI version and smartphone model. If you don't see the options described, use the settings search.

There's also a hidden setting accessible through the engineering menu, but changing it without proper knowledge can lead to unstable operation of the radio module. It's best to limit yourself to the standard optimization tools provided by the manufacturer in the user interface.

Reset network settings

If software glitches have accumulated over a long period of use, the best solution is to perform a full network settings reset. This procedure won't delete your personal files, photos, or contacts, but it will clear all saved Wi-Fi passwords, Bluetooth settings, and mobile network settings.

You can perform a reset through the menu Settings -> Connection and sharing -> Reset Wi-Fi, Mobile Networks, and BluetoothConfirm the action and wait for the communication modules to reboot. After powering on, the phone will be cleared in terms of network configurations.

This method is especially effective after updating your operating system or changing your internet provider. It allows you to remove any misconfigurations that may have been left over from previous connections and could be interfering with the proper operation of your current connection.

After the procedure, you'll need to re-enter passwords for all Wi-Fi networks and re-pair Bluetooth devices. We recommend immediately checking your internet connection and, if necessary, resetting your DNS servers, as they will be reset to default values.

Additional methods and engineering codes

Advanced users can access more advanced settings through the engineering menu. Entering a special code in the dialer app allows access to hidden radio module parameters. However, these tools should be used with extreme caution.

One of the useful codes is - ##4636##In the menu that opens, select Wi-Fi InformationHere you can view detailed statistics, run a network scan, or even reset Wi-Fi at the driver level. Some options may not be available on newer versions of Android for security reasons.

• 🛠 Wi-Fi Scan: Allows you to see all available networks and their technical parameters.
• 📉 Statistics: shows the number of packets transmitted and received.
• 🔄 Reset: Software restart of the Wi-Fi module without turning off the phone.

It's also worth checking to see if airplane mode is accidentally enabled or running in the background. Sometimes, briefly enabling airplane mode for 10-15 seconds can help, forcing the radio to reconnect to the nearest tower or router with updated settings.

⚠️ Caution: Do not change values ​​in the engineering menu if you are unsure of them. Incorrectly setting frequency ranges may prevent your phone from detecting networks of a certain standard.

Don't forget about the physical condition of the device. A tight case with metal elements or magnetic fasteners can block the signal. Remove the case and check if the reception improves. In some cases, simply rebooting the router can help if it's been running continuously for a long time.

Frequently Asked Questions (FAQ)

Why does Xiaomi's Wi-Fi turn off by itself?

This is most often related to power saving settings. The system disables the module to conserve battery life. Check your battery settings and allow the Wi-Fi app to run in the background without restrictions.

How to enable 5 GHz if the phone doesn't see it?

Make sure your router supports this band and has it enabled in the settings. If your router is dual-band but broadcasts the same network, try separating the names of the two networks in the router settings.

Does changing the region in the settings affect Wi-Fi?

Yes, some countries have restrictions on the use of certain channels and signal strengths. Changing your region may open up access to additional channels, but it may also raise legal issues.

Should you use Wi-Fi booster apps?

Most of these apps are just marketing gimmicks. They simply flush the DNS cache or switch networks, which can be done using standard Android tools without installing any extra software.

What to do if the speed is low even near the router?

Check the speed on other devices. If it's slow everywhere, the problem is with your ISP. If it's only on your phone, try resetting your network settings or changing your DNS.