How to check who's connected to my MTS Wi-Fi router: all the methods

Have you noticed your internet has slowed down and your data usage is depleting faster than usual? Someone else might be accessing your Wi-Fi. MTS routers — a popular target for "freeloaders", especially if the network is not password protected or a standard login is used admin/adminIn this article we will analyze All current methods for checking connected devices, including hidden methods for advanced users.

It's important not only to identify "unnecessary" gadgets, but also to understand how they got into the network. Often, the culprit is WPS protocol vulnerability (even if it's disabled in the settings) or password leakage via phishing sites. We'll show you how to check connections on these models. MTS GF-ON4G-II, Huawei HG8245H, Sercomm RV6699 and others, as well as what to do if you discover someone else's devices.

1. Checking via the MTS router web interface

The most reliable way is to access your router's control panel. This doesn't require any additional software, just a browser. The login address depends on the model:

• 🌐 192.168.1.1 - for most MTS routers (including GF-ON4G-II And Huawei B525)
• 🌐 192.168.0.1 - alternative address for older models
• 🔍 If the address doesn't open, check it using the command ipconfig (Windows) or ifconfig (Mac/Linux) - look for the line Default Gateway

Login instructions:

1. Open your browser (preferably Chrome or Firefox) and enter the control panel address.
2. Enter your login and password. The default for MTS is:

   Login: admin
   Password: admin or mts (for new models)

3. Go to the section DHCP → DHCP Clients or Wireless Network → Statistics (the name depends on the firmware).

Check the "Connected Devices" or "DHCP Clients" section|Compare MAC addresses with your devices|Pay attention to unknown IPs (for example, 192.168.1.100 if you don't have one)|Check the connection time - night sessions may indicate a hack-->

In the table you will see:

2. Using the My MTS mobile application

For owners of MTS routers with cloud management support (for example, MTS Smart Wi-Fi) The official app is available. It displays connected devices in real time and allows you to block them with a single tap.

How to check:

1. Download the app My MTS from App Store or Google Play.
2. Log in using your phone number (must be linked to the router).
3. Go to the section Services → Internet → My Devices.
4. Click on the tab Connected devices.

Advantages of the application:

• 📱 Notifications about new connections (if the function is enabled) Wi-Fi Security).
• 🔒 Ability to lock your device directly from the app.
• 📊 Activity history (shows when the device was last online).

Yes, regularly|Only for checking traffic|No, I don't know about this feature|I tried it, but didn't like it-->

⚠️ Attention: In some regions, remote Wi-Fi management in the My MTS app may be disabled. This depends on your plan and router model. If you don't see a device section, use the web interface.

3. Checking via the command line (for advanced users)

If you have access to a computer running Windows, macOS or Linux, you can check connected devices without logging into the router. This method works even if the web interface is blocked.

For Windows:

1. Open Command line (Win + R → enter cmd).
2. Enter the command:

   arp -a

3. Look for IP addresses from your subnet (eg. 192.168.1.x).

For macOS/Linux:

1. Open Terminal.
2. Enter:

   nmap -sn 192.168.1.0/24

   (replace 192.168.1.0 to your subnet, if it is different).

What to do with the results:

• 🔍 Compare the MAC addresses with your devices (you can find them in your phone/laptop settings).
• 🚫 If you find an unknown MAC address, copy it and block it in the router (section MAC Filter).
• 📡 Pay attention to the manufacturer by the first 3 bytes of the MAC (for example, 28:CF:DA — Apple, B8:27:EB — Raspberry Pi).

curl "https://api.macvendors.com/54:EE:75"

4. Third-party network monitoring programs

If standard methods don't help, use specialized utilities. They scan the network and display all connected devices, including hidden ones.

Popular programs:

Example of working with Fing (mobile app):

1. Install Fing from App Store or Google Play.
2. Run a network scan (button Scan).
3. Browse the list of devices. The app automatically detects the device type (smartphone, TV, camera, etc.).
4. Click on the unknown device → Block Device (if the router supports this function).

⚠️ Attention: Some programs (eg Wireshark) require administrator rights and may conflict with antivirus software. Disable your VPN before scanning, as it will distort the results.

5. How to identify "extra" devices: signs of hacking

It's not always easy to distinguish your device from someone else's, especially if you have a lot of gadgets in your home. Here are the key signs that someone else is using your Wi-Fi:

• 🕵️ Unknown names: devices with names like android_12345, ESP_8266 (a popular IoT module), TP-LINK_Client.
• 🕒 Suspicious activity time: if the device appears at night or when you are not at home.
• 📉 Speed ​​drop: test on Speedtest.net shows a speed below the tariff for no apparent reason.
• 🔄 Frequent MAC/IP changes: one device appears and then disappears (sign of use) MAC-spoofing).
• 🌍 Geolocation: some programs (for example, GlassWire) show the country of manufacture of the device. If you see China or Vietnam, and you don’t have devices from there - this is an alarming sign.

What to do if you find a foreign device:

1. Straightaway turn off the Internet on the router (button WAN or pull out the cable).
2. Change it Wi-Fi password complex (minimum 12 characters, with numbers and special characters).
3. Turn on MAC filtering in the router settings (section Wireless → MAC Filter).
4. Update your router firmware (in the section System → Software Update).

6. How to protect MTS Wi-Fi from unauthorized connections

Finding the "freeloaders" is half the battle. The main thing is to prevent a repeat hack. Here's mandatory safety measures for MTS routers:

• 🔐 Change the default password:
  • For Wi-Fi: minimum 15 characters, example - M7s#K9pL!2xY$5vN.
  • For control panel: instead admin/admin come up with a complex combination.
• 🔄 Disable WPS:
  • This feature is vulnerable to brute force attacks. It is disabled in Wireless Network → WPS.
• 📡 Hide network name (SSID):
  • Enable the option Hide SSID in the Wi-Fi settings. This doesn't provide 100% protection, but it does reduce the number of accidental connections.
• 🛡️ Turn on the firewall:
  • In the section Security → Firewall activate SPI Firewall And DoS Protection.
• 🔄 Update the firmware:
  • Outdated software versions contain critical vulnerabilities. Check for updates every 2-3 months.

Additional measures for advanced users:

• 🌐 Guest network: Create a separate network for guests with limited access to local resources.
• ⏱️ Wi-Fi schedule: turn off the internet at night (in Wireless Network → Schedule).
• 📊 Traffic monitoring: use programs like PRTG Network Monitor to monitor suspicious activity.

⚠️ Attention: If your MTS router was leased by your provider, some settings (such as firmware updates) may be blocked. In this case, please contact MTS support to unlock it or replace the device with a more modern model.

7. Common Mistakes and Myths About Wi-Fi Security

Many users follow advice that not only doesn't help, but actually worsens security. Let's address the most common misconceptions:

• 🚫 MAC filtering will protect against hacking.:

  MAC addresses are easy to spoof (MAC-spoofing). This is an additional measure, but not the main one.

• 🚫 "A hidden SSID makes the network invisible.":

  The SSID is still broadcast when devices connect. Hiding it only makes it more difficult to establish a legitimate connection.

• 🚫 "The longer the password, the better.":

  Password 123456789012345 (15 characters) will be hacked in seconds. Important combination letters, numbers and symbols.

• 🚫 "WPA2 is sufficient for protection":

  Obsolete protocol WPA2-PSK vulnerable to attack KRACK. Use WPA3, if the router supports it.

• 🚫 "If the internet is fast, then no one is connected.":

  Modern "freeloaders" use traffic limiters to remain undetected.

What it really works:

• ✅ Regular password change (every 3-6 months).
• ✅ Usage WPA3-PSK + AES (if available in the settings).
• ✅ Disabling remote control of the router (section Remote Management).
• ✅ Check connected devices once a week.

FAQ: Answers to Frequently Asked Questions