A slow internet speed or unexplained activity on your router's indicators are often the first signs that an uninvited guest has connected to your network. In the age of digital convenience, Wi-Fi access is shared not only with smartphones and laptops, but also with smart kettles, refrigerators, and video surveillance systems, making the list of devices quite large. However, if you've counted more gadgets than you actually have in your home, it's worth conducting an immediate connection audit to rule out traffic theft or the use of your bandwidth for illegal activities.
Company Rostelecom provides subscribers with equipment from various manufacturers, most often it is Sagemcom, Sercomm or Eltex, each with its own management interface. Regardless of your router model, the principle of identifying connected clients remains the same: you need to access the administrative panel or use the provider's mobile app. In this article, we'll cover all available monitoring methods, from classic browser login to using modern cloud services.
It's important to understand that timely detection of a foreign device not only allows you to restore the advertised connection speed, but also protects your personal data. Unauthorized access Access to a local network can lead to password interception or attacks on your computers, so regularly checking the client list is a basic element of digital hygiene for any user.
Signs of a foreign connection and security risks
The first and most obvious symptom of a "neighbor" on your network is a sharp drop in internet speed, especially during hours when you're not downloading heavy content. If videos stop loading in HD and pages load slowly, even though your data plan promises high speeds, this is cause for concern. The router's indicator lights can also indicate a problem: the WLAN light or wireless network icon starts blinking frantically, even when all your devices are in sleep mode.
However, relying solely on visual observations isn't recommended, as background operating system updates or cloud file synchronization also create bandwidth load. A more reliable indicator is the number of active connections in the router interface. If you see a device with an unfamiliar name, for example, Android-xxxx or Unknown DeviceIf you can't identify a network, the likelihood of it being hacked is high. Modern network scanning software can determine not only the IP address but also the MAC address, which is the unique identifier of the network card.
⚠️ Note: Some smart devices may appear in the list under strange names or as "Generic." Before blocking an unknown device, check the instructions for your smart device to avoid accidentally disabling an important gadget.
The risks of unauthorized access to your Wi-Fi go beyond simply consuming bandwidth. An attacker who gains access to your local network could theoretically attempt to access shared folders on your computer or inject malicious code. Furthermore, any actions taken from your IP address can legally be traced back to the provider—you. This is why monitoring your connection list is critical.
Accessing Rostelecom router settings
To obtain detailed information about all devices on the network, you must log in to the router's web interface. This can be done through any browser on a computer or smartphone connected to the router's network. The default login address for the equipment Rostelecom most often looks like 192.168.1.1 or 192.168.0.1, however, in some models Sagemcom a domain name can be used 192.168.100.1The exact address, as well as the default login and password, are always indicated on a sticker located on the bottom or back of the device.
The authorization process requires entering your credentials. In most cases, the factory login is admin, and the password too admin or the combination indicated on the sticker (for example, 1234 or a unique set of characters). If you previously changed the password for entering the settings and forgot it, you will have to reset the router to factory settings using the button Reset, which will require you to reconfigure your Internet connection.
After successfully entering the data, you will be taken to the main page of the control panel. The interface may differ depending on the firmware: on older models, it looks like a list of links on the left, while on newer models (RT-PCR4, RT-PMW326) is a graphical panel with tiles. We're interested in the section related to the wireless network or connection status. Modern firmware often includes a "My Devices" or "Client List" tab, which displays all the necessary information.
☑️ Checking access to the router
Analyzing the list of connected devices in the web interface
After logging into the router management system, you need to find the section responsible for displaying active clients. Depending on the equipment model Rostelecom, this section may be called differently: “Client List”, “DHCP Client List”, “Wireless Status” or “My Devices”. In older interfaces Sagemcom the information you are looking for is often hidden in the menu Local Network -> Home Networking or Wireless -> Associated Devices.
In the window that opens, you'll see a table containing key information about each connected device. Typically, this displays the IP address, MAC address, connection type (Wireless or LAN), and sometimes the device name (Hostname). The device name helps identify the owner, for example, Ivan-iPhone or LivingRoom-TV, but if the user has not changed the gadget name, it may look like a set of characters.
For easier analysis, the data in the table can often be sorted. Pay attention to the "Connection Type" column or the icon next to the name: an antenna icon or the text Wireless indicates a Wi-Fi connection, and the computer icon or Ethernet — on a cable connection. If you see an unknown wireless device, it's most likely the "neighbor" you need to block.
| Parameter | Description | Value to check |
|---|---|---|
| IP Address | Unique address of the device on the local network | 192.168.1.XX |
| MAC Address | Physical address of the network card (unchangeable) | AA:BB:CC:11:22:33 |
| Interface | Connection type (cable or Wi-Fi) | Wireless / Ethernet |
| Lease Time | IP address lease time | 23:59:59 |
Modern routers Rostelecom with standard support 802.11ac And ax (Wi-Fi 6) allows you to manage each device individually directly from this list. You can see not only the connection status but also the current data transfer rate. If an unknown device is actively downloading files, the speed in the "Tx/Rx Rate" column will be high. This confirms that the channel is currently being used.
Using the Rostelecom Key mobile application
For users who prefer to manage their network from their smartphone, the company Rostelecom developed an application Rostelecom KeyThis is the most convenient monitoring method, eliminating the need to remember IP addresses or navigate complex menus. The app is available for platforms Android And iOS and allows you to control your home network from anywhere in the world where there is internet access.
After installing the app and logging in using your contract number or the phone number linked to your account, go to the "Router" or "My Network" section. This displays an interactive network map, showing all connected devices. The app's interface is more user-friendly than the web dashboard: devices often have icons (TV, phone, laptop), making identification easier.
The app's functionality allows you not only to view the list but also to instantly respond to intrusions. You can tap on an unknown device and select "Block" or "Restrict Access." Furthermore, the app will notify you if a new device connects to the network, which is an excellent preventative security measure. For all features to work, the router must support the remote management protocol, which is required for most modern models provided by your ISP.
What should I do if the app doesn't see the router?
If your router isn't displayed in the Rostelecom Key app or the "Network" section is empty, ensure that geolocation is enabled on your device (for Android) and all necessary permissions are granted. Also, check that your router isn't in Bridge mode, as app management features may be unavailable in this mode. In some cases, updating the router's firmware via the web interface may be necessary.
How to block an intruder and protect your network
Once you discover someone else's device, you must immediately block its access. The most effective method is to use MAC address filtering. In the router settings, in the “Security” or “MAC Address Filter” section (MAC Filter), you need to add the offender's address to the blacklist (Blacklist). Once the settings are applied, the router will ignore any connection requests from this specific device, even if it knows the password.
However, blocking a single address is a half-measure, as an experienced user can change the MAC address of their adapter. Therefore, the most reliable method of protection is to completely change the password for your Wi-Fi network. Go to your wireless network settings (Wireless Settings), find the field Pre-Shared Key or WPA Passphrase and set a complex password consisting of uppercase and lowercase letters, numbers, and special characters. After saving the settings, all devices will be disconnected, and you'll need to reconnect your devices with the new password.
Don't forget about other security measures. Make sure the "Security" function is disabled on your router. WPS, which is often a vulnerable spot for hacking. It is also recommended to hide the network name (SSID), so that it does not appear in the list of those available to everyone around, although this will add inconvenience when connecting new devices.
⚠️ Note: After changing your Wi-Fi password or filtering settings, all your devices (TVs, set-top boxes, phones) will lose connection. You will need to manually reconnect each one using the new password.
Diagnosing speed and stability issues
Sometimes it seems like a thief has connected to the network, but the problem actually lies in technical details. For example, overloading the wireless channel with neighboring routers can cause packet loss and reduced speed, which is mistaken for traffic theft. Built-in analyzers in routers can be used for diagnostics. Rostelecom or third-party applications on your smartphone that show channel load.
It's also worth considering that some devices consume a lot of traffic legally. Smart TV Apps can be updated in the background, game consoles can download patches, and cloud storage can sync photos. Such devices may have a high traffic rank in the connection table. To confirm this, try disconnecting all your devices and see if network activity persists.
If, after checking the client list and disconnecting all your devices, the router's LEDs continue to flash actively and unknown entries remain in the DHCP client list, it's possible that old entries are stored in the router's settings. Try clearing the DHCP lease list (Clear List or Delete All) and reboot the router. This will reset current sessions and display the actual connection status at startup.
Frequently Asked Questions (FAQ)
Can my neighbor hack my Wi-Fi if I have a strong password?
Theoretically, it is possible to crack a modern encryption protocol. WPA2/WPA3 With a long and complex password, brute-force attack is almost impossible. However, if you have the feature enabled WPS, an attacker could exploit a vulnerability in this protocol to gain access without requiring a password. Social engineering or malware on your friends' devices connected to your network also poses a risk.
Why does the device list show "Unknown" or a strange set of characters?
Device Name (Hostname) is transmitted by the gadget itself upon connection. Many electronics manufacturers, especially budget or specialized ones (smart plugs, cameras), do not provide a nice name, leaving the factory designation or an empty field, which the router interprets as UnknownFor accurate identification in such cases, you need to check the MAC address against the sticker on the device itself.
Will my router reset if I just unplug it?
No, a normal power cycle does not reset the settings. The configuration, including the Wi-Fi password and the list of blocked MAC addresses, is stored in non-volatile memory. A factory reset only occurs with a long press (10-15 seconds) of the button. Reset or WPS/Reset when the power is on, or via a software command in the interface.
Does the number of connected devices affect internet speed?
Yes, it does. A router has limited processor and RAM resources. Each connected device, even in standby mode, generates background traffic and takes up some of the router's processing power. If many active devices are connected and sharing the same bandwidth, the speed for each will drop proportionally to their consumption.