How to check who's connected to your Rostelecom Wi-Fi router: all the methods

Have you noticed that your internet has become slower than usual? Or do you suspect that someone else has connected to your Wi-Fi? In 2026, the problem of home network "broadcasting" will remain relevant: according to Rostelecom, up to 15% of subscribers experience unauthorized access at least once a year. Fortunately, checking the list of connected devices on their routers Sagemcom, Sercomm or Huawei from Rostelecom in just a few minutes - without any special knowledge.

In this article you will find 5 working methods checking active connections: from the standard web interface to mobile applications and advanced utilities like Wireless Network WatcherWe will also look at how distinguish your gadgets from others, what to do when unfamiliar devices are detected and how Configure your Rostelecom router to prevent future hacking.All instructions are valid for router models issued by the provider in 2026–2026.

Let us warn you in advance: if you have never changed the default Wi-Fi password (for example, the one indicated on the router sticker), the probability of "exposing" the network is more than 70%But even with a strong password, risks remain—we'll talk about this in the section about hidden threats.

1. Checking via the Rostelecom router web interface

The most reliable way is to access the router's control panel. This doesn't require installing any additional software, and the data is updated in real time. These instructions apply to all models issued by Rostelecom: Sagemcom F@st 5364, Sercomm RV6699, Huawei HG8045A and others.

Steps to log in:

• 🌐 Open any browser (Chrome, Firefox, Edge) and enter in the address bar 192.168.1.1 or 192.168.0.1If none of the addresses work, check the sticker on the back of the router - it may indicate a different IP (for example, 192.168.100.1 for some models Huawei).
• 🔑 Enter your login and password. By default, this is often admin/admin or user/userIf you changed the data, use your own. The sticker on the router also contains the factory login data.
• 📊 After logging in, find the section Local Area Network (LAN) → Devices or Wireless network (Wi-Fi) → WLAN clientsIn some firmware versions, the item may be called DHCP → Client list.

In the table you will see:

• 🖥️ Device name (if it is specified in the gadget settings). For example, iPhone-13-Pro-Max or Samsung-Galaxy-Buds.
• 🔢 MAC address — a unique identifier for the network card. It can be used to identify the device manufacturer (first 6 characters).
• 📶 Connection type: via Wi-Fi or cable (Ethernet).
• ⏱️ Connection time and IP address in the local network.

Check if your computer is connected to the router via cable or Wi-Fi|

Disable VPN or proxy in your browser|

Try a different browser (for example, Firefox instead of Chrome)|

Reboot your router by pressing the button Reset for 10 seconds (only if you forgot your password)-->

If there are unfamiliar devices on the list, don't rush to block them. These could be your guests' gadgets or smart devices (e.g., Xiaomi or Redmond) that you've forgotten. To check, disconnect all your devices from Wi-Fi for 5 minutes and refresh the page—if the "stranger" disappears, it was a temporary guest.

⚠️ Attention: If you see a device with a MAC address starting with 00:0F:B5, 00:1A:79 or 00:1E:58, it could be neighbor's router, connected to your network in bridge mode. Such cases are common in apartment buildings with poor network isolation.

2. Using the Rostelecom Personal Account mobile app

If you find it inconvenient to access your router settings via a browser, use the official app. Rostelecom Personal Account (available for Android And iOS). It allows you to manage your network directly from your smartphone, including viewing connected devices.

Instructions:

1. Download the app from App Store or Google Play and log in using your contract number.
2. Go to the section Services → Internet → My devices (the name may differ depending on the version of the application).
3. Click on the tab Connected devicesA list of gadgets will be displayed here, indicating their names, MAC addresses, and connection type.

Advantages of the method:

• 📱 No need to remember the router's IP address or login/password.
• 🔄 Data is updated automatically when you open a section.
• 🛡️ You can do it right away block a suspicious deviceby clicking on it and selecting Deny access.

Flaws:

• ⚠️ The app may not show devices connected via cable (Wi-Fi only).
• ⏳ Sometimes the list is updated with a delay of up to 1–2 minutes.

Once a month|

Only when the internet is slow|

Never checked|

I use automatic monitoring (for example, via a router)-->

If the app doesn't have a device section, update it to the latest version or check your router settings through a browser. In some regions Rostelecom limits the functionality of the mobile application - this depends on the tariff and the equipment model.

3. Checking via the command line (Windows, macOS, Linux)

For experienced users, there's a way to check connected devices without logging into the router—via the command line. This method shows all active IP addresses on your local network, but does not always allow us to identify their "owners".

Instructions for Windows:

arp -a

After running the command, you will see a table with IP addresses and corresponding MAC addresses. For example:

192.168.1.3 aa-bb-cc-dd-ee-ff dynamic
192.168.1.5 11-22-33-44-55-66 dynamic

To understand which of these addresses belong to other people's devices:

1. Disconnect all your gadgets (smartphones, laptops, TVs) from the network.
2. Run the command arp -a again.
3. The remaining IP addresses in the list most likely belong to third-party devices.

For macOS And Linux the command is similar, but with a flag:

arp -n

The downside of this method is that it only shows devices that actively exchanged data in the last minutes. If the "stranger" is simply connected to the network but not using the internet, their MAC address may not be displayed.

4. Third-party network monitoring programs

If standard methods don't work, you can use specialized utilities. They not only show connected devices but also allow you to block them, limit their speed, or receive notifications about new connections.

Top 3 programs for Windows:

For Android will do:

• 📱 Fing — scans the network, detects open ports, checks internet speed.
• 🛡️ NetCut — allows you to block devices directly from your smartphone (root rights required).
• 🔍 Network Analyzer — shows detailed information about each connected gadget.

Example of work Wireless Network Watcher:

1. Download the program from the official website nirsoft.net and run (no installation required).
2. Click Start Scanning — after 10–30 seconds a list of all devices will appear.
3. Pay attention to the column Device Information - the manufacturer may be indicated there (for example, Apple, Samsung, Xiaomi).

How to trick monitoring programs?

Some hackers spoof the MAC addresses of their devices (this is called MAC-spoofing) to make it harder to identify them. For example, they might pass off their laptop as Samsung Smart TV, changing the first 6 characters of the MAC address to 00-0D-4B (Samsung prefix). In this case, the only solution is to block the MAC address in the router settings or change the Wi-Fi password.

If you find a suspicious device but you are not sure if it is someone else's, try disconnect it from the network for a while through the program and see if the problem with slow internet goes away.

5. How to distinguish your devices from others

Even if the list of connected devices contains unfamiliar names, it doesn't always mean your device has been hacked. It's possible you simply didn't recognize your device. Here's how to figure it out:

Identification methods:

• 📱 Check device names: Gadgets are often displayed under standard names, such as:
  • android-123456789 — Android smartphone;
  • MacBook-Pro - Apple laptop;
  • ESP_123456 - a smart light bulb or sensor (for example, from Xiaomi);
  • Direct-TV — TV with Smart TV function.
• 🔍 Compare MAC addresses: Each device has a unique MAC address, which can be found in its settings. For example:
  • On iPhone: Settings → General → About → Wi-Fi Address.
  • On Android: Settings → About phone → General information → Wi-Fi MAC address.
  • On Windows: run the command ipconfig /all in the command line.
• 🕵️ Use online services: Enter the first 6 characters of the MAC address (e.g. B8:27:EB) on the website macvendors.comto find out the manufacturer. For example, B8:27:EB belongs Raspberry Pi, A 78:31:C1 — Apple.

If the device is not recognized:

1. Disconnect all your gadgets (including smartwatches, speakers, cameras) from Wi-Fi.
2. Update the list of connected devices in the router or program.
3. If the "stranger" remains, it is 100% a foreign device.

Don't forget about smart devices, which can connect to the network automatically:

• 💡 Smart light bulbs (Xiaomi Yeelight, Philips Hue);
• 🔊 Smart speakers (Yandex Station, Amazon Echo);
• 📷 IP cameras (Dahua, Hikvision);
• 🔌 Sockets and sensors (Redmond, Aqara).

6. What to do if a foreign device is detected

If you are sure that someone has connected to your network, follow these steps:

Step 1: Lock your device

• Via the router's web interface: find the MAC address of the stranger and add it to Blacklist (chapter Wireless Network → MAC Filter).
• Via the app Rostelecom Personal Account: Click on the device and select Block.

Step 2: Change your Wi-Fi password

This is the most reliable way to prevent reconnections. How to change your password:

1. Go to the router's web interface (192.168.1.1).
2. Go to Wireless Network (Wi-Fi) → Security.
3. In the field Network key or Password Enter a new password (recommended) at least 12 characters with numbers, letters and special characters).
4. Save your settings and reconnect your devices.

Step 3. Additional security measures

• 🔒 Enable MAC address filtering: Allow connections only to those devices whose MAC addresses you specify. Whitelist.
• 📡 Change the network name (SSID): Don't use a standard name like RTK-ABC123 - this makes things easier for hackers.
• 🛡️ Disable WPS: This feature simplifies the connection, but makes the network vulnerable. Find the option WPS in the settings and deactivate it.
• 🔄 Update your router firmware: Outdated software versions contain vulnerabilities. Check for updates in the section System → Software Update.

If the problem persists, it may be your Wi-Fi the neighbor intercepts through special equipment (for example, Wi-Fi gun or repeater with bridge function). In this case it is worth:

• Change Wi-Fi channel to a less loaded one (in the router settings, section Wireless Network → Channel).
• Decrease signal strength (option Tx Power), if you live in an apartment, this will reduce the coverage area outside of it.
• Complain to Rostelecom for possible traffic theft (by phone 8 800 100 08 00).

7. Hidden Threats: What Else Can Slow Down Your Wi-Fi

Slow internet isn't always due to unrelated connections. Here are other common causes:

1. Smart devices that consume traffic

• 📹 IP cameras in recording mode they can load up to 50 Mbps to the device.
• 🎮 Game consoles (PlayStation, Xbox) download updates in the background.
• ☁️ Cloud services (For example, Google Photos or Yandex.Disk) synchronize files.

2. Viruses on your devices

If your computer or smartphone is infected, it may:

• Share the Internet with other devices via hidden hotspot.
• Participate in botnet (for example, for DDoS attacks).
• Mine cryptocurrency in the background.

3. Problems on Rostelecom's side

• 📉 Channel congestion in the evening hours (especially relevant for tariffs up to 100 Mbit/s).
• 🔧 Technical work on the provider's equipment.
• 📡 Interference from neighbors, if you and they have the same Wi-Fi channel.

How to diagnose the problem:

1. Check your internet speed on speedtest.net or nperf.com.
2. Disconnect all devices from Wi-Fi and connect one laptop via cable. If the speed returns to normal, the problem is with the wireless network.
3. Call Rostelecom support and ask them to check signal level on the line (must be no lower than -30 dBm).

⚠️ Attention: If you see in the list of connected devices several unidentified gadgets with the same MAC address (For example, 00:00:00:00:00:00), this could be a sign "MAC flooding" attacksReboot your router immediately and change your password!

8. How to prevent Wi-Fi hacking in the future

To minimize the risk of unauthorized access, follow these guidelines:

1. Router settings

• 🔐 Use WPA3 instead of WPA2 (if your router supports it). In the security settings, select WPA3-Personal.
• 🔄 Change your Wi-Fi password once every 3–6 months.
• 📵 Turn off guest network, if you don't use it.
• 📡 Hide the SSID (network name) if you don't want everyone to see your router. Option Hide SSID is in the section Wireless network.

2. Additional measures

• 🛡️ Install firewall on the router (if there is such an option).
• 📊 Turn on connection logging (chapter System → Logs). This will help track exactly when someone else's device appeared.
• 🔔 Set up notifications about new connections through apps like Fing or GlassWire.

3. Physical security

• 🏠 Don't place the router in the hallway—the signal shouldn't extend far beyond the apartment.
• 🔌 If your router supports it, disable it WPS button physically (on some models it is on the back panel).
• 🔑 Keep the factory sticker with passwords in a safe place - if a guest sees it, they will be able to connect.

If you travel frequently or rent out your apartment, consider disabling Wi-Fi during absence via a timer in the router settings or a smart plug.

Remember: even the strongest passwords don't guarantee 100% protection. Regularly check the list of connected devices—it only takes a minute, but it will save you time and bandwidth.

FAQ: Frequently Asked Questions

Is it possible to find out what websites someone else's device is visiting on my network?

No, without special equipment or software (for example, Wireshark) you won't be able to see the traffic of other devices. Rostelecom also doesn't provide this information upon request. If this bothers you, immediately block unfamiliar devices.

What should I do if someone else's device connects even after changing the password?

This could mean:

1. Device cloned the MAC address one of your gadgets.
2. Your router infected with malware (For example, Mirai).
3. Someone is using vulnerability in firmware router.

Solution: Do it full reset of the router (button Reset (For 10 seconds), update the firmware and reconfigure the network. If the problem persists, contact Rostelecom support for hardware replacement.

Can my neighbor connect to my Wi-Fi if I hide the SSID?

Yes, hide network name (SSID) does not protect from hacking. An experienced user can find your network using programs like inSSIDer or NetStumbler, even if it doesn't appear in the list. Hiding the SSID only makes it more difficult for casual users to connect.

How can I check if a smart device (such as a TV or speaker) is stealing my data?

Disconnect all gadgets from Wi-Fi except the suspicious smart device and run a speed test on speedtest.netThen disconnect the device and repeat the test. If the speed increases significantly, it was consuming traffic. You can also use programs like GlassWireto see how much traffic a particular gadget generates.

Is it legal to block other people's devices from your network?

Yes, you have every right. block any devices on your home network. This is not considered a violation of the law, since you own the equipment and pay for the internet. However, if you block devices in public network (for example, in a cafe or hotel), this may be regarded as interference with the network.