Modern Xiaomi and Redmi smartphones are equipped with an aggressive MIUI optimization system that often mistook useful background processes for malicious or overly voracious. Users often face a situation where messengers stop sending notifications, and the navigator can not load the card while on the road, this is because the built-in traffic saving mechanism forcibly breaks the connection for applications that are not in the active window.
System algorithms tend to extend battery life by blocking data transmission in the background. This behavior is especially annoying when you expect an important Internet call or file to boot automatically. Fortunately, the HyperOS interface and earlier versions of MIUI allows you to flexibly adjust these settings, regaining full control of network connections.
In this article, we will discuss how to remove traffic restrictions so that your applications work consistently, we will look at settings for mobile data and Wi-Fi, and we will also discuss the issues of working in energy saving mode, which often conflicts with network requests.
Basic Network Access Configurement for Applications
The first step to solving the problem is to check the individual permissions for each application installed. Xiaomi system allows you to manually deny or allow Internet access for any program, and sometimes these settings are confused after updates.
Open the Security app, which is system-based and pre-installed on all the brand's devices. At the bottom of the screen, find and select Traffic Consumption. This shows consumption statistics, but we're interested in the management functionality. Click on the gear icon or the restriction menu item.
In the list that opens, you'll see all the programs installed. Make sure that mission-critical applications (messengers, mail, navigation) are ticked in the columns "Mobile data" and "Wi-Fi." If the tick is removed, the application will not physically be able to connect to the server, even if the Internet on the phone is turned on.
- 📱 Open the Security app on the home screen.
- 📊 Go to Traffic Consumption and select Application Management.
- ✅ Check the availability of network access boxes for all important programs.
- 🔄 Reboot your device to apply global changes to network protocols.
⚠️ Note: If you turn off Wi-Fi access for Google or Xiaomi Cloud system services, syncing contacts and photos may stop working, which will lead to data loss when you change your device.
After making the changes, it is recommended to force the problem application to close and run it again, allowing the program to re-initiate the network request, which will now not be blocked by system filters, in most cases, this solves the problem with “hang” messages.
Background management and energy saving
Often, the reason for the traffic restriction is not a direct ban on access, but aggressive power management. When the screen goes out, the MIUI or HyperOS system can freeze processes, considering them inactive. For instant messengers, this means breaking the connection to the server until the next user opens.
To disable this restriction, go to Device Settings and find the Apps section. Select All Apps and find the right program in the list, such as Telegram or WhatsApp. Inside the app menu, you are interested in Saving Charge or Battery.
You need to select the option “No restrictions” here, which allows the application to run in the background without interruption, constantly maintaining an active network connection. Standard mode “Savings” can be too strict for tasks that require constant online.
☑️ Adjusting background activity
Also worth checking the global battery settings. In the Battery section, make sure that the ultra-economical mode is not activated, which blocks background synchronization for all applications except select ones, which often happens after a firmware update, when the settings are reset to factory ones.
| Mode of work | Description of the impact of traffic | Recommendation |
|---|---|---|
| No restrictions. | Full access to the 24/7 network | For messengers and navigators |
| Savings | Limitation of background activity | For games and video |
| Super-economy | Blocking most processes | Only at critical charge. |
It's important to understand that the resolution of the background work slightly increases the battery consumption, but for today's lithium polymer batteries, this effect is minimal and fully justified by the stable operation of communication services.
Setting restrictions on the mobile network
Special attention should be paid to the settings of mobile Internet, as users are often afraid to exceed the limits of the operator. Xiaomi smartphones have a built-in traffic counter that can automatically turn off data transmission when you reach a given threshold.
To check these parameters, go back to the Security app and select Tariff Plan or Traffic Settings, which displays your current limit and statistics, and if you see a message that the limit is exhausted, Internet access will be blocked until the next cycle (usually before the beginning of the month).
To disable automatic lock, click on the Settings button in this menu. Find Traffic Limit** or Limit. You can either increase the value to the maximum possible, or turn off the restriction function completely by removing the corresponding switch.
Path to Settings: Security → Tariff Plan → Settings → Traffic LimitAlso in this section, there is a feature called Traffic Saving Mode, which compresses data when you browse pages in the Mi Browser browser, but can break the display of complex sites.
Hidden APN settings
Remember that when switching between Wi-Fi and mobile, the system may apply the rules differently. Make sure that priority settings are not set to shut down mobile internet immediately when the Wi-Fi signal is weak, unless that is what you want.
Specifics of work in the mode of energy saving
Power saving mode is a separate use case that drastically changes the behavior of the smartphone’s network modules. When you activate this feature (usually at a charge below 20%), Xiaomi’s system begins to “smother” background processes to prolong the life of the device.
This mode turns off automatic sync, stops coming push notifications and limits the background load of content. If you want your phone to stay connected even in saving mode, you need to create an exception.
Go to the battery settings and find a list of apps that can run in the background even when power is turned on, add messengers and important work tools, and without this step, traffic restriction will be enforced, ignoring the individual application settings.
- 🔋 Activate the energy saving mode for check.
- 📝 Go to the limitations settings for background processes.
- ➕ Add important apps to the exclusion list ("white list»).
- 📡 Check if notifications are coming in this mode.
⚠️ Note: In Ultra Battery Saver mode, the internet can shut down completely for all applications except calls and phone calls. SMS. In this mode, it is impossible to remove restrictions through standard settings.
Users often confuse energy saving mode with sleep. In sleep mode, the screen goes out, but the system works fine unless you set back limits. It is the "Sleep" settings in the Security app that often block files from downloading at night.
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If you use third-party antivirus or cleaners, they may have their own traffic blocking rules that override MIUI system settings.
Diagnostics problems with Wi-Fi connection
Traffic problems can occur not only on the mobile data side, but also in Wi-Fi networks. Xiaomi smartphones have a function called Wi-Fi Assistant, which analyzes the quality of the connection. If the signal is weak, the phone can automatically switch to mobile Internet or, conversely, break the connection, considering the network unstable.
To diagnose, go to Settings → Wi-Fi → Wi-Fi Assistant. Here you can see the smart switching settings. If you want to lock your device on a particular network, turn off the option to automatically switch to mobile data when the signal is weak.
You should also pay attention to the settings. DNS. Sometimes the provider or router can block certain requests. In the Wi-Fi settings, click on your network name, select Settings. DNS And try to manually prescribe servers 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare), which often helps bypass the local ISP restrictions.
It is important to check whether the router is not included filter on the MAC-Although this is not a phone setup, the symptoms will be identical: the Internet seems to be there, but traffic does not pass or speeds are reduced.
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The stability of Wi-Fi on Xiaomi often depends on the correct settings of the router and the absence of frequency conflicts. Switching between 2.4 GHz and 5 GHz can solve the problem of cliffs.
Resetting network settings as a radical method
If none of the above methods worked, and traffic restrictions continue to manifest themselves as connection errors, it is possible that the system has accumulated configuration software errors, in which case the effective solution will be to reset the network settings.
This operation will return all the parameters of Wi-Fi, Bluetooth and mobile networks to factory values. Your personal files, photos and contacts will remain safe, but you will have to re-enter passwords from Wi-Fi networks and reinvent Bluetooth devices.
To perform the reset, go to Settings → Connection and Sharing (or “Advanced Settings”) → Reset Wi-Fi, mobile networks and Bluetooth. Confirm action and wait for the network modules to reboot.