Smartphone owners Xiaomi, Redmi And POCO Often encounter situations where the wireless connection is unstable, the speed drops, and the connection drops at the most inopportune moments. This is especially noticeable given the hardware of modern models, such as Xiaomi 13 or Redmi Note 12 Pro, is capable of supporting high data transfer rates. However, the software limitations of the shell MIUI or HyperOS, as well as aggressive battery saving, can significantly reduce the quality of signal reception.
The problem isn't always your ISP or a faulty router. Often, it's the operating system itself. Android Manages the Wi-Fi module in the background. The system can forcefully disconnect the connection to save power if it detects an app is inactive, or select an overloaded channel. In this article, we'll discuss a comprehensive approach to solving this problem, from simple checks to in-depth system settings.
Before moving on to more complex steps, it's worth making sure the basic settings are configured correctly. Sometimes, simply rebooting the device or resetting the network settings is enough to fix a temporary software glitch. However, for lasting results, more in-depth configuration is required, which we'll discuss below.
Diagnostics of the current network state
The first step to solving the problem is understanding what exactly is interfering with quality communication. On phones Xiaomi There are built-in tools to evaluate signal strength and response speed. Don't rely solely on the number of bars in the status bar, as this indicator often shows approximate values.
Use the standard settings menu for an initial check. Go to Settings → Wi-Fi and click on the name of your network. Here you will see the current connection speed and frequency. If it is displayed 2.4 GHz, then in an apartment building this may be the reason for low speeds due to noise in the air.
For a more detailed analysis, it is recommended to install a specialized application, for example, WiFi Analyzer or Celular-ZThese snails will show what channel your router is operating on and how many neighbors are jamming your signal. If the graph shows channels 1, 6, or 11 are overcrowded, changing the channel in your router settings will be the first step to improving your signal.
It's also worth paying attention to the phone's performance in different areas of the apartment. If the signal is excellent in one room but disappears in another, it could be due to a physical obstruction or interference from household appliances. Microwave ovens and baby monitors often operate at the 2.4 GHz frequency and create significant interference.
Optimizing Wi-Fi settings in MIUI and HyperOS
Shells from Xiaomi have many features that, by default, can limit network performance. First, it's worth checking the settings of the Wi-Fi module itself. Go to Settings → Wi-Fi → Wi-Fi Settings (or through three dots in the corner of the screen).
It's important to find the "Use Wi-Fi even on weak signals" option. If enabled, the phone will stick to a distant router until the last possible moment, instead of switching to mobile data or searching for a better access point. This feature is better for desktop use at home. turn off.
The function deserves special attention Wi-Fi Assistant (Wi-Fi Assistant). It's designed to automatically switch to mobile data if Wi-Fi internet is poor. However, in practice, this algorithm often malfunctions, causing constant connection drops. It's recommended to disable all automatic improvements in this section.
Another important setting is whether to use MAC address randomization. For home networks, this isn't always necessary and can sometimes cause issues with router filtering. In the settings for your specific network, select "Privacy Type" and try changing the setting to "Use Device MAC Address."
Configuring DNS and frequency ranges
One of the most effective measures to speed up network response is changing DNS servers. Providers often provide their own servers, which can be slow in processing requests. Using public DNS Google or Cloudflare often speeds up website opening.
To change these settings, in the Wi-Fi settings menu, click the arrow next to your network name. Find the "IP Settings" section and toggle it off. DHCP on StaticHere you will need to enter the addresses manually. In the DNS 1 field, enter 8.8.8.8, and in DNS 2 - 1.1.1.1.
☑️ Quick DNS Optimization Checklist
As for frequency ranges, the transition to 5 GHz is a priority if your router supports this standard. The 5 GHz band is less crowded and offers significantly higher speeds, although it has a shorter range. Make sure your router isn't set to "2.4 GHz Only."
In some models Xiaomi There's a hidden frequency priority setting. Although there's no direct "Always use 5 GHz" slider in the regular menu, the system automatically strives for a faster connection if you remove the power saving restrictions. If the router broadcasts networks with the same name on both frequencies, the phone may get confused. Try separating the network names (SSIDs) in the router by adding the suffix "_5G" and connecting to that one.
⚠️ Attention: When switching to a static IP address, make sure you don't enter an address that's already taken by another device on the network, otherwise an IP conflict will occur. Leave the IP address and gateway fields as they were suggested by your phone when switching modes, changing only the DNS.
Impact of power saving on the communication module
Aggressive battery saving policies are the bane of devices Xiaomi And RedmiThe system may disable the Wi-Fi module or limit its functionality if the screen is off or the app is not actively in use. This often results in delayed messages in messengers and interrupted downloads.
To resolve this issue, you need to adjust the behavior of applications and the system. Go to Settings → Battery → Power SavingSelect "Performance" or "Balanced" mode, but not "Power Saver." Power Saver mode severely limits background network activity.
It's also important to customize each important app individually. Go to Settings → Apps → All apps, select the desired messenger or browser, go to "Battery," and set the mode to "No Limits." This will prevent the system from killing the app process and its network activity.
There is another hidden mechanism. In the "Security" menu (the standard application from Xiaomi) Find the "Battery" section. There may be an option to "Close unused apps" or "Limit background activity." Disable any options related to clearing memory or network data in the background.
Hidden developer settings
In the Developer Options menu (activated by tapping "MIUI Version" seven times), you'll find the "Wi-Fi scan throttling" option. Disabling this feature allows apps to scan networks more frequently, which can improve stability but increase battery consumption.
Reset and reconfigure network settings
If software adjustments don't help, it's possible that configuration errors have accumulated in the system. Network profiles can become corrupted, especially after firmware updates or router changes. In this case, a full reset of network settings may help.
This operation will not delete your personal files, photos, or contacts. It will only affect saved Wi-Fi passwords, Bluetooth settings, and mobile network settings. To do this, go to Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and Bluetooth.
After the reset, the phone will reboot. You'll need to re-enter the Wi-Fi password. This often solves 90% of the problems with constant disconnects on phones. POCO And RedmiThe system creates a new, clean connection profile without old errors.
In some cases, deleting a specific saved profile helps. In the list of networks, tap the desired one, select "Delete" or "Forget Network," and then reconnect. This forces the phone to re-establish a handshake with the router and obtain a new IP address.
| Parameter | Recommended value | Where to find |
|---|---|---|
| DNS 1 | 8.8.8.8 | Wi-Fi Settings → Static IP |
| DNS 2 | 1.1.1.1 | Wi-Fi Settings → Static IP |
| Wi-Fi sleep mode | Never | Settings → Battery → Top right (gear) |
| Wi-Fi Assistant | Off | Wi-Fi Settings → Wi-Fi Settings |
| Background limitation | No restrictions | App Settings → Battery |
Engineering menu and advanced methods
Advanced users can access the engineering menu, which allows for more precise adjustment of the transmitter power. However, this method requires caution. Access is via the Phone app and a code. ##6484## (to check the equipment) or through special applications for engineering mode.
In the testing menu (CIT) you can find a section WiFiThe actual signal strength is often displayed there in dBm. A normal value is considered to be between -40 and -60 dBm. If the value is below -80 dBm, the problem is most likely hardware or a very weak router signal.
Some users change the region in their phone settings. It's believed that selecting the "India" or "US" region can unlock additional channels or increase transmitter power. Go to Settings → Additional settings → Region and try changing your country. However, this may affect the operation of some local services.
⚠️ Attention: Changing settings in the engineering menu or using third-party signal boosting apps (requiring root access) may result in unstable phone operation or void the warranty. Only proceed if you understand the consequences.
Also worth mentioning is the feature Wi-Fi Turbo (or similar names in different MIUI versions). It optimizes gaming performance by reserving a bandwidth for gaming. Make sure this feature is enabled in Gaming Mode (Game Turbo), if Wi-Fi problems occur specifically during games.
Why does my Xiaomi's Wi-Fi keep disconnecting in sleep mode?
This is standard behavior of the MIUI power-saving system. To fix it, you need to allow background running for the required apps in the battery settings and disable "Sleep" for Wi-Fi in the advanced battery settings.
Does changing the region on your phone help strengthen the signal?
In some cases, changing the region (for example, to India or the United States) can change the transmitter power settings permitted in that country, which could theoretically improve reception. However, this effect is not guaranteed and depends on the model.
How to check the Wi-Fi frequency on Redmi?
Click the name of the connected network in the Wi-Fi menu. The window that opens will display the frequency (2.4 GHz or 5 GHz) and connection speed. Apps like WiFi Analyzer also display this information.
Should I update the firmware if my Wi-Fi is not working properly?
Yes, MIUI/HyperOS updates often fix wireless driver issues. Check for updates in the "About phone" section. However, if the problem appeared after an update, a factory reset may help.