When an outsider connects to your wireless network, which is familiar to many Xiaomi smartphone owners. Internet speeds are slowing and personal data security is threatened. It is at such moments that there is an urgent need to learn how to quickly and effectively disconnect a person from their Wi-Fi directly from their phone. Owners of Mi and Redmi devices have several proven ways to solve this problem without contacting the provider.
The big challenge is that Xiaomi's smartphone itself is not a router unless you're using hotspot mode. So, the management of connected customers is most often done through a modem web interface or specialized scanner apps. MAC-addresses and settings DHCP This will help you not only to kick out the uninvited guest, but also to prevent him from intruding on the network again.
In this article, we will take a look at all the available methods to protect your communication channel. We will look at the standard capabilities of the Android operating system, hidden features of the MIUI shell and specialized software. You will learn to distinguish between legitimate devices from others and block access at the hardware level, ensuring a stable speed of your Internet.
Analysis of connected devices through router settings
The most reliable and correct way to disable an uninvited guest is to use the administration panel of your router. Modern router models, whether TP-Link, Asus or Keenetic, have convenient mobile interfaces. IP-Gateway address, which on Xiaomi phones is usually displayed in the details of the Wi-Fi connection.
Open your Wi-Fi settings on your smartphone, click the arrow next to your network name, and find the "Gateway" or "Router" line. By entering these numbers into your browser's address bar (like Chrome or Mi Browser), you'll be taken to the management menu, and you'll need to enter your username and administrator password, which are often listed on the sticker under the router's case, unless you've changed them before.
Inside the interface, look for a section called “Wireless", "WLAN" Or "Customer List." It shows a table of all the connected devices from their devices. IP and MAC-Identifying a stranger is usually easy: compare the number of gadgets you know to the list in the panel. If you see a device called "Unknown" or a strange set of characters that doesn't match your devices, that's a cause for concern.
To lock, look for the “Block”, “Block” button or the icon of the prohibiting hand next to the MAC-The router will break the connection to the device after you set the settings, and it is also important to change the password from the Wi-Fi network, since the old key may have been compromised or transferred to third parties without your knowledge.
Using applications to control the network on Android
If logging into a router bar seems too complicated or the modem interface is not adapted for mobile devices, Google Play apps will come to the rescue. Network scanners allow you to visualize all connected customers and manage them in one click. One of the most popular tools is the Fing app, which works perfectly on the MIUI shell.
Once you install and run the scan, the app will show you a list of all the devices on your local network. MAC-So you can see, for example, that "Device 1" is a Samsung TV, and "Device 2" is an unknown laptop, and that allows you to quickly identify anomalies.
Many of these tools offer a “Block intruder” feature. The mechanism of work can vary: some applications try to send a break packet on their own, others redirect you to the router settings. It is worth noting that some functions may require root rights to work fully, which can be difficult to obtain on new Xiaomi.
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Use the Notes feature in scanner apps to rename all your devices (e.g., Mom's Phone, Work Laptop) to help you instantly spot someone else's device on the list.
Beyond blocking, these programs are useful for real-time traffic monitoring. If you notice an unknown device actively consuming data, it's a sure sign that someone is downloading files or watching videos through your channel. Regularly checking the connection list helps maintain digital security hygiene.
Setting up a blacklist MAC-address
Simply turning off the device does not guarantee that the attacker will not connect again; he can use programs to automatically reconnect or change the device. MAC-The most effective way to protect the router is to set up a Blacklist directly on the router, which allows you to permanently deny access to specific identifiers.
To use this method, find the section "Wireless" in the router settings MAC Filtering” or “Filtering” MAC-Addresses." You'll need to add MAC-Once the settings are saved, the router will ignore any connection requests from that device, even if it knows the correct password.
There is also a more radical but reliable method, Whitelist, in which the router only allows the connection of devices whose devices are not connected. MAC-And the other ones, even if they know the password, they can't connect, and that's the perfect way to maximize the security of the home network.
☑️ Filtration setting MAC-address
When using a whitelist, be careful: if you buy a new gadget, you will have to manually deposit it. MAC-The address is in the router's settings before you connect, but the security level is the highest, and no one in the neighborhood can access your Wi-Fi, even if you accidentally say your password.
Change password and type of network encryption
The easiest and most effective way to discard all connected users is to change the password from the Wi-Fi network, so once you change the access key in the router settings, all devices, including your own, will lose connection, and reconnecting will require you to enter a new password that only you know.
When changing your password, look for encryption type. Make sure you choose WPA2-PSK or modern WPA3. Outdated protocols like WEP or WPA are easily broken by automated means in minutes, making your network vulnerable. Xiaomi phones also display a type of security when connected to the network, allowing you to quickly check your settings.
It is recommended to use complex passwords consisting of letters of different registers, numbers and special characters. Avoid obvious combinations like "12345678" or date of birth. Passwords of 12 or more characters are almost impossible to find by brute-force in a reasonable time.
| Parameter | Recommended value | Old/Unreliable value |
|---|---|---|
| Type of encryption | WPA2-PSK / WPA3 | WEP, WPA, No Encryption |
| Password length | 12+ characters | Less than 8 characters |
| Password composition | Letters, numbers, symbols | Only numbers or names |
| Network name (SSID) | No personal data. | Apartment. 45, Ivan_WiFi |
When you change your password, remember to update your saved networks on all your devices: TVs, set-top boxes, guest phones. It's a minor inconvenience, but it ensures that only trusted users remain on your network. Regularly changing passwords (for example, every six months) is a good digital hygiene practice.
Hiding the Network Name (SSID) as a Method of Protection
Another layer of protection is hiding your wireless network name (SSID) when this feature is activated, the router stops broadcasting the network name to the air. In the list of available connections on neighbors' phones, your network simply will not appear, making it invisible to casual passers-by.
To connect to a hidden network, you will have to manually enter the network name (SSID) and password in the Wi-Fi settings on your Xiaomi phone. In the network add menu, select Add Network and enter the exact name, observing the letter register, which creates an additional barrier for fans to profit from other people's traffic.
⚠️ Attention: Hiding SSID It's not a panacea. Specialized scanners can detect hidden networks from service packets, and it can cause inconvenience when connecting new guest devices.
Some older devices or smart devices (light bulbs, sockets) may not work properly with hidden networks, permanently losing connection, so it is better to use this method in combination with other security measures, rather than as a sole means of protection.
The effect of SSID concealment on the phone battery
Security checks and additional measures
Once you've disabled an uninvited guest, it's important to do a security audit. Check if your router's WPS is enabled. This technology allows you to connect to the network with a simple push of a button or pin-code selection, which is a huge security hole. In the router's settings, find the WPS partition and force it to turn off.
It’s also worth updating the router’s firmware to the latest version. Manufacturers regularly release updates to close vulnerabilities through which hackers can access network management. On Xiaomi phones, checking for system updates is also important, as older versions of Android can have holes in Wi-Fi security protocols.
If you often host guests, create a separate guest network for them, a feature that is found in almost all modern routers. The guest network has its own password and is completely isolated from your main network, where personal files, printers and a smart home are located, and even if guests share a password, it will not compromise your main devices.
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An integrated approach, including changing the password, disabling WPS and filtration MAC-This provides maximum protection for your home network from outsiders.
Regular monitoring of connected devices will help you stay in control, make a habit of looking at your router's customer list once a month, which will take no more than two minutes, but will save you from trouble in the future, and remember that network security is a continuous process, not a one-time action.