A situation where an outsider connects to your access point can occur at any time, especially in crowded places.This not only reduces the speed of your Internet connection, but also poses serious risks to the security of personal data. Xiaomi smartphone owners often face the need to quickly identify an uninvited guest and break the connection, however, the standard MIUI or HyperOS interface does not always offer an obvious solution for beginners. Understanding how Wi-Fi distribution works will help you effectively manage the list of connected customers.
In this article, we will take a look at all the available methods to disconnect a person from the hotspot on Xiaomi smartphones and tablets. You will learn about the regular functions of the operating system, the hidden features of the developer menu, as well as third-party applications that can help in emergency cases. In addition, we will discuss the issues of setting up security to prevent reconnections in the future. Traffic control is a skill that every modern mobile Internet user should have.
Don't ignore the fact of unauthorized access, as an attacker can intercept the data packets you transmit if the connection is not properly protected. Modern WPA3 encryption algorithms implemented in the latest versions of Android make this task much more difficult, but basic precautions have not been canceled. We will look at how to check the current status of connections and what indicators can signal the presence of a "neighbor" in your network.
Identification of connected devices in the MIUI interface
The first step before you take active blocking action is to make sure exactly who is consuming your traffic. In the MIUI shell and the new HyperOS, the access point functionality is informative enough, but requires careful study. Go to the settings, select the Access Point section and click on Connected Devices, and here you will see a list of all the gadgets that are currently using your connection.
Note device names: they often appear as a phone model (like the iPhone 13 or Samsung Galaxy). S22), But sometimes it can be labeled as Unknown Device. If you see a device that doesn't belong to you, write it down. MAC-This is a unique network card identifier that will help you further with filter settings. MAC-Address is a key parameter for accurate identification of equipment in the local network.
⚠️ Warning: Don’t be in a hurry to turn off the Wi-Fi module immediately if you see a suspicious device.First make sure it’s not your second phone, tablet, smartwatch or TV that could automatically connect in the background.
The connection management interface may vary slightly depending on the Android version. On older versions of MIUI, the client list may be hidden in the attached Device Management menu. In new builds of HyperOS, this information is displayed more prominently on the main screen of hotspot settings. It is important to understand that the system does not update the list instantly, so when you turn off the device, it may take several seconds to display changes.
Methods of forced disconnection through smartphone settings
The easiest and safest way to break off communication with an unwanted customer is to use built-in controls. Unlike routers, which often require a web interface login, Xiaomi smartphones allow you to manage connections directly from the lock screen or from the notification curtain, although full functionality is only available in deep settings. Go to the access point menu and find the “Disable” button or cross next to the device name.
If the standard shutdown button doesn't work or the device automatically reconnects, you need to change the security settings. Go to the access point settings and select the option "Secure." Here, we recommend changing the encryption type to WPA2-PSK or WPA3-SAE if both devices support the new protocol. Changing the password is the most radical, but also the most effective method, since it resets authorization for all customers at once.
- 📱 Click on the name of the suspicious device in the list of connected devices.
- 🚫 Select the option “Block” or “Disable” in the menu that appears.
- 🔒 If the device returns, change the access point password in the main settings.
- 🔄 Reboot the Wi-Fi module by turning off and switching on the access point again.
There is also a Hide Device feature in some firmware versions that does not shut down the client completely but limits its priority in the data queue. However, to completely break the connection, you better use a direct lock. Remember that after changing the password, you will have to re-enter a new access key on all your personal devices, so choose complex combinations that are difficult to find by brute force.
☑️ Security check of the access point
Use of white and black lists (MAC-filtering)
For more advanced access control in smartphones Xiaomi implemented the ability to filter by MAC-This feature allows you to create a list of trusted devices that will be open to the network forever, while all others will be automatically blocked. This is the most reliable way of protection, since even knowing the password, a stranger will not be able to connect if his unique identifier is not entered in the database of allowed passwords.
To set up a whitelist, go to the advanced access point settings and find the “Filter” option. MAC-Addresses" or "Access Management." Here you can switch to "Allow only devices from the list. MAC-All other attempts to connect will be ignored by the system, even if the password is entered correctly.
| Type of filtration | Principle of action | Level of security | Usability |
|---|---|---|---|
| Open network | Password-free access | Low. | High-pitched |
| WPA2-PSK | Password access | Medium. | Medium. |
| White List (Allow List) | Only authorized MACs | High-pitched | Low. |
| The Black List (Deny List) | Blocking specific MACs | Medium. | Medium. |
Using a blacklist (block list) is less effective in the long run, as an experienced user can fake their own. MAC-address (MAC spoofing) and circumventing the ban: the white list lacks this disadvantage in the household scenario, as it requires the physical availability of the device to add it to the database.
⚠️ Warning: When you turn on the whitelist, make sure you add the current device you’re setting up from, otherwise you may lose access to access point management and have to reset your network settings.
Setting up traffic restrictions and limits
Often the problem is not just the fact of the connection, but the excessive consumption of traffic by a third-party device. MIUI allows you to set data limits for the access point, which automatically turns off all customers when you reach the threshold. This is a useful feature if you want to give a file to a friend, but do not want him to start downloading game updates or watching video in 4K.
In the Access Point section, look for Traffic Limit or Data Limitation, where you can set a limit (e.g. 100MB or 1GB) and an expiration period (on a single or monthly basis) when the limit is exhausted, the Wi-Fi distribution will automatically stop, effectively shutting down all users, a good preventive control method that does not require constant monitoring of the customer list.
How does the traffic counter work in the background?
You can also pay attention to the "Timer of Work" feature, which means you can set the hotspot to turn off automatically after a certain time after turning on or at a certain time, especially if you leave the phone on overnight or leave forgetting to turn off the gear. Automation helps save battery life and prevents the network from being open for a long time.
Some users prefer to use third-party real-time traffic monitoring apps that can show more detailed statistics for each connected device. However, Xiaomi's built-in tools are usually accurate enough for household use. The main thing is to remember to check the settings periodically, as after updating the system, some parameters can be reset to factory values.
Third-party applications for network management
If standard HyperOS functionality isn’t enough, Google Play offers a variety of apps for detailed analysis and connection management, and utilities like Fing, WiFi Analyzer, or dedicated access point managers can provide information hidden in the standard interface, allowing you to see not only device names, but also open ports, protocols used, and even the approximate location of the device manufacturer.
However, it is worth considering the security limitations of Android. Since version 10, Google has significantly limited the ability of applications to manage the system settings of Wi-Fi without root rights. This means that a third-party application can show you a list of connected, but to turn them off you still have to redirect you to the system settings. Root rights give full control, but their receipt is insecure and can disrupt the operation of banking applications.
- 📡 Fing is the best tool for network scanning and device identification MAC-address.
- 🛡️ NetCut – allows you to break connections (requires root or specific settings) ARP).
- 📊 WiFi Monitor – provides detailed statistics on signal and channel load.
- 🔋 Data Usage – helps you track which app or device consumes the most traffic.
When using third-party software, be careful with the permissions you grant. Apps don't need to know your contacts or location to analyze the network. Give preference to open source programs or reputable developers with a good reputation. Otherwise, you risk installing malware that will collect data about your connections.
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Use the Guest Network feature on your router if you share the Internet frequently, and this isolates guests from your main home network and printers.
Prevention and strengthening of access point security
The best way to combat unauthorized access is to prevent it. Setup an access point on Xiaomi should start with a strong password. Avoid simple combinations like 12345678 or birth date. Use a mixture of different register letters, numbers and special characters. Password length should be at least 12 characters to ensure sufficient resistance to brute-force attacks.
It is also recommended to update the smartphone software regularly. Xiaomi periodically releases security patches that close vulnerabilities in Wi-Fi protocols and the Android system. The outdated version of the firmware may contain holes that allow you to bypass authorization. Check for updates in the About Phone → MIUI version.
⚠️ Note: Never use a named access point (SSID), This gives potential attackers extra information for social engineering or targeted attacks.
If you're in a public place, it makes sense to turn off network visibility (hide SSIDs), in which case the access point will not appear in the list of available networks in others, and you can only connect to it by manually entering your name and password. This creates a level of security through uncertainty, although it is not absolute protection from professionals. SSID hiding does not encrypt traffic, but hides the fact that your network exists from random passers-by.
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Comprehensive approach: combination of complex password, filtering by MAC-Addresses and regular connection monitoring ensure maximum security of your mobile access point.