Xiaomi’s smartphones, including Redmi and POCO, often face problems with unstable connectivity, even with powerful carrier coverage. Users notice that pages load longer and video content is constantly buffered despite the stated high tariff speeds. This is a common situation associated with both the features of the MIUI or HyperOS shell and the incorrect network settings by default.
There is a comprehensive approach to solving this problem that does not require deep knowledge of programming or Root rights. Optimization begins with basic checks and ends with fine-tuning system parameters through the engineering menu. In this article, we will discuss proven methods that really help to increase connection stability and reduce ping in games.
Before we go into complex manipulations, we need to rule out trivial hardware or external factors. Often the cause is the case that shields the antenna, or the congestion of the cell tower in your area, and the diagnosis must be consistent so that you can pinpoint the source of the problem and fix it in the most efficient way.
Basic diagnostics and resetting of network settings
The first step should always be to simply reset the accumulated errors in the network module. Android over time accumulates a cache of network connections that can conflict with the current signal. Simply switching to aerial mode does not always clear these temporary files completely, so a deeper approach is required.
To start, try a full network reset, which will bring Wi-Fi, Bluetooth and mobile internet back to factory values by removing all stored passwords and associated devices, a secure procedure that doesn't affect your personal photos or contacts, but often solves the floating signal problem.
- 📱 Open the menu Settings of your smartphone.
- 📡 Go to Connect and Sharing (or Additional Features in Older Versions) MIUI).
- 🔄 Find the Reset point Wi-Fi, mobile networks and Bluetooth.
- ✅ Confirm the action and wait for the reboot of communication modules.
Once you do this, the phone can behave as if you just bought it for network connections, you have to re-enter the passwords from Wi-Fi networks, but this is a necessary measure to clean up old configurations. If the problem persisted due to a software glitch in the communication drivers, this method should help.
☑️ Checklist of primary diagnostics
⚠️ Note: After resetting the network settings, all saved Wi-Fi passwords will be deleted without recovery. Make sure you remember the keys to the main access points before starting the procedure.
Optimization of mobile Internet settings (APN)
One of the most effective but often ignored settings is the APN (Access Point Name) configuration. Communications operators often provide standard settings that may not take into account the specific modems in Xiaomi smartphones. Adjusting these settings can significantly increase the speed of loading and response of the server.
To get into the settings menu, go down the Settings path. → SIM-maps and mobile networks → Choose yours. SIM-map → Access points (APN). Here you'll see a list of existing profiles. Don't delete them, create a new one by clicking on the plus or add button.
Should I use third-party apps to change APNs?
In the new profile window that opens, it is important to fill in the fields correctly. The name can be any, for example, "Fast Internet". The Access Point field (APN) must strictly meet the requirements of your operator (for example, Internet.mts.ru for MTS or Internet for Tele2). The remaining fields, such as the type of authorization, should be left empty or set the PAP or CHAP value if the standard one does not work.
| Parameter | Recommended value | Description |
|---|---|---|
| Name. | Custom Fast | Arbitrary profile name |
| APN | internet | Depends on the operator. |
| Type APN | default,supl | Mandatory parameter for work |
| Protocol | IPv4/IPv6 | Compatibility with all servers |
After you save your new profile, remember to activate it by putting a dot opposite the name. Reboot the device so that the changes take effect at the radio level. In some cases, switching network mode helps: try setting "Only temporarily" 3G", Wait a few seconds and return the "preferably" 4G/LTE". This forces the phone to re-register on the network with updated settings.
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If the Internet is completely lost after changing the APN, delete the created profile and select your carrier’s standard profile from the default list.
Configure DNS to speed up response
Page loading speed depends not only on channel bandwidth, but also on the response time of name servers (DNS). Standard. DNS-servers provided by the provider or operator often run slowly or are subject to traffic filtering. DNS It can significantly reduce the time of opening websites.
In modern versions of Android and shell MIUI There is a built-in function "Private" DNS" (Private DNS). It allows you to encrypt. DNS-Requests and directs them to trusted servers, bypassing the provider's potentially slow nodes, which also increases security when using open Wi-Fi networks.
- 🌐 Go to Settings. → Connection and sharing.
- 🔒 Find a private item DNS (It may be in the section "Additional").
- ✏️ Select the mode "Host Name of the provider" DNS" (manually).
- ⚡ Enter the address of a fast server, for example: dns.google or 1dot1dot1dot1.cloudflare-dns.com.
Alternatively, use a Wi-Fi Private DNS app or similar utilities if your firmware version has direct access to settings. However, the built-in method is preferable because it works at the system level and does not consume the battery with background processes. After applying the settings, check the speed through Speedtest or Fast.com.
⚠️ Note: Do not use untested DNS-This can lead to your traffic being redirected to phishing sites or slow down the Internet due to remote servers.
Hidden Engineering Codes and Network Choice
Xiaomi smartphones have a hidden engineering menu that allows you to control the parameters of the radio module in more detail than in the standard interface, with the help of which you can force the phone to a certain frequency or communication standard, which is especially true in areas of uncertain reception, where the phone constantly “jumps” between 3G and 4G.
To access the menu, dial the code ##4636## in the phone. If the code is not working (it is blocked in some regions or versions of MIUI), you can use the Activity Launcher app to start the Testing activity. From the menu that opens, select Phone Information.
Here you will find the drop-down list “Install preferred network type.” The default value is with the prefix LTE/3G/2G (auto). You can try changing it to LTE only if you are in the zone of confident 4G reception, but the phone stubbornly clings to weak 3G. This stabilizes the connection, but you will lose the ability to make voice calls over the regular network (only VoLTE or messengers).
The path to the hidden menu:
Dial -> ##4636## -> Phone information ->
Establish a preferred network typeAlso on this menu you can see the real strength of the signal in dBm. values from -50 to -80 dBm are considered excellent, from -80 to -100 dBm - good, and everything below -110 dBm indicates a very weak signal, where no software settings will not help without an external amplifier.
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Forced switching to LTE only mode can give you a stable Internet in games, but will turn off incoming calls if VoLTE technology is not supported.
System debris removal and optimization of background processes
Often the problem with slow internet is not the network, but the congestion of the system with background tasks. The MIUI shell is known for its aggressive energy saving policy, but sometimes it allows applications to consume traffic in the background, creating a queue for download. Clearing cache and limiting background activity can free a channel.
Check which apps consume the most traffic. Go to Settings → Data Use. If you see an application that you rarely use but it downloads gigabytes of data, limit its background activity. It is also useful to clear the cache of the Downloads system application and browser.
- 🗑️ Open the Security app (standard for Xiaomi).
- 🧹 Click on the Cleanup button to delete temporary files.
- 📱 Go to Accelerate and close unused applications.
- 🚫 In the application settings, disable Auto Start for programs that do not require constant notifications.
Another important aspect is disabling the application installation assistant (MIUI Optimizer), which can scan traffic in real time, slowing down, and it’s also worth checking whether the traffic saving mode is enabled in the browser itself or in Chrome settings, as it can compress pages, distorting their display and slowing down the loading of heavy elements.
Why not use the “Internet Accelerators” from the Play Market?
Hardware factors and work with Wi-Fi module
The physical limitations cannot be discounted. Xiaomi mid-range and low-end smartphones often have antennas placed at the bottom of the case or integrated into the frame. A tight case, especially with metal inserts or a magnetic fastener, can shield the signal, reducing its level by 10-15%.
In the case of Wi-Fi, it is critical to use the 5GHz band if your router supports dual-band operation. 2.4GHz frequency is heavily congested in apartment buildings, which leads to interference and packet loss. Make sure that the router settings are on 802.11ac (Wi-Fi 5) or ax (Wi-Fi 6).
If your phone is connected to 2.4 GHz, try changing the Security Protocol setting to WPA3 or WPA2-PSK (AES) in your phone’s Wi-Fi settings (in the extended access point menu). Avoid mixed TKIP/AES modes, as they can force you to reduce the connection speed to 54 Mbps.
⚠️ Note: When you change your router settings (e.g., switching to a clean 5GHz), older devices may stop seeing the network. Make sure all your gadgets support the new standard before a global configuration change.
In rare cases, the problem may be in the oxidation of contacts. SIM-Remove the tray, wipe the contacts of the card with soft dry cloth and set back, make sure the card is not deformed and sits tightly in the tray. SIM-The card is very old (cut by hand or more) 5-7 It is necessary to replace it with a new operator with support 4G/LTE, Older maps may not work well with modern networks.