Have you noticed that the internet is Dom.ru Is your Wi-Fi slowing down? Perhaps unauthorized devices have connected to your network—neighbors, guests who forgot to disconnect, or even hackers exploiting vulnerabilities in your router's security. According to J’son & Partners ConsultingEvery fifth home Wi-Fi user in Russia has experienced an unauthorized connection to their network at least once.
In this article you will find 6 proven methodsHow to find out who is using your Wi-Fi Dom.ru — from standard router tools to specialized applications. We'll cover step-by-step instructions for popular hardware models (Sagemcom, Sercomm, Huawei), we'll explain how to identify suspicious devices and what to do if you discover "unnecessary" gadgets on your network. Important: all methods work regardless of your plan. Dom.ru (be it Dom.ru Internet 100, Dom.ru Gigabit or corporate solutions).
1. Checking via the Dom.ru router web interface
The most reliable way is to log into your router's control panel. Most models that provide Dom.ru (Sagemcom F@st 5364, Sercomm RV6699, Huawei HG8245H), have a built-in tool for monitoring connected devices. Here's how to use it:
- Find out your router's IP address. Usually it is
192.168.0.1or192.168.1.1The exact address can be found on the sticker on the back of the device. - Enter the address into the browser address bar (this will work) Chrome, Firefox or Edge).
- Log in. The default login and password are
admin/adminoruser/user(indicated on the same sticker). If you changed them, use your information. - Go to the connected devices section. The path varies depending on the model:
- 🔹 Sagemcom:
Home Network → DevicesorLAN → DHCP Clients - 🔹 Sercomm:
Network → Local Network → ARP List - 🔹 Huawei:
Network → LAN → DHCP Client List
- 🔹 Sagemcom:
In the list that opens, you will see all the devices connected to your Wi-Fi: MAC addresses, IP addresses and names (if assigned). Pay attention to unknown gadgets, especially those with random character sets in their names (for example, android-12ab34cd56ef).
Make sure the number of devices matches the actual number|Check MAC addresses with your gadgets|Pay attention to unknown IP addresses|View the last connection time of each device-->
⚠️ Attention: If you haven't changed your router's default login and password, anyone connected to your network can access its settings. Change your login details immediately in the section System → Administrator Password (or similar).
2. Using the Dom.ru Personal Account mobile app
If you are not comfortable working through the web interface, use the official application Dom.ru For Android or iOSIt allows you to not only check your balance and plan, but also manage some Wi-Fi settings. Here's how to find a list of connected devices:
- Download and install the application Dom.ru Personal Account from App Store or Google Play.
- Log in using your username (usually this is the contract number or linked phone number).
- Go to the section
Internet → My Wi-Fi Network. - Click on the tab
Connected devices. - 📱 Fing (Android/iOS) — scans the network and displays all devices with MAC addresses, manufacturers, and open ports. The free version limits the number of scans.
- 💻 Wireless Network Watcher (Windows) — requires no installation and displays the IP, MAC address, and device name. Suitable for in-depth diagnostics.
- 🖥️ Angry IP Scanner (Windows/macOS/Linux) is an advanced utility for scanning local networks. It can detect the operating system type of connected devices.
The app will display a list of gadgets with their names (if assigned) and connection time. Unfortunately, there is no detailed information about MAC addresses, so for a deeper check, it's best to combine this method with the router's web interface.
Important: in the app Dom.ru Only devices connected at the time of the scan are displayed. If an "outside" device was disconnected 5-10 minutes before the scan, it may not appear in the list.
3. Third-party network monitoring applications
If standard tools Dom.ru If these seem insufficient, you can use specialized utilities. They will not only show connected devices but also provide additional information: gadget manufacturer, connection type (Wi-Fi or Ethernet), and sometimes even model.
The best apps for this task are:
Example of working with Fing:
- Install the application and open it.
- Click
Scan— the utility will automatically detect your network. - Wait for the scan to complete (usually takes 10-30 seconds).
- Review the list of devices. Next to each one, you'll see manufacturer information (e.g., Apple, Xiaomi, Samsung).
⚠️ Attention: Some antiviruses (for example, Kaspersky or ESET) can block network scanning by third-party utilities. If Fing or Wireless Network Watcher If the network protection doesn't work, temporarily disable it in your antivirus settings.
4. MAC Address Analysis: How to Identify Fake Devices
Each device on the network has a unique MAC address (For example, 00:1A:2B:3C:4D:5E). The first six characters (the prefix) can be used to identify the gadget's manufacturer. This will help identify suspicious connections.
Here's how it works:
- Copy the MAC address of the unknown device from the list of connected devices (for example,
A4:83:E7:12:F5:89). - Go to the website MAC Vendor Lookup (For example, macvendors.com) and enter the prefix (first 6 characters:
A4:83:E7). - The service will show the manufacturer. For example, the prefix
3C:5A:B4belongs Google (maybe it's someone else's smartphone Android), A78:31:C1— Apple.
| MAC address prefix | Manufacturer | Possible device |
|---|---|---|
B8:27:EB |
Raspberry Pi | Minicomputer or server |
5C:51:4F |
Intel | Laptop or PC |
74:23:44 |
Xiaomi | Smartphone, smart lamp or camera |
34:64:A9 |
Amazon | Device Echo (smart speaker) |
00:0A:F7 |
Cisco | Network equipment or IP camera |
If you see a device with a MAC address that doesn't belong to any of your other gadgets, it's cause for concern. Especially if the manufacturer is TP-Link, MikroTik or another brand of network equipment: this may be a sign that someone has connected their router to your network in the mode repeater.
How to change MAC address on Android/iOS?
On Android Without root rights it is impossible to change the MAC address (starting with version 10). iPhone This feature is also blocked. However, on devices with root or jailbreak You can use applications like MacDroid (Android) or Network-Addr (iOS).
5. Checking via the command line (for advanced users)
If you prefer to work without a graphical interface, you can get a list of connected devices via command line (Windows) or terminal (macOS/Linux). This method is suitable for advanced users, as it requires knowledge of basic network commands.
Instructions for Windows:
arp -a
This command will output an ARP (Address Resolution Protocol) table, listing all IP and MAC addresses of devices on your local network. To save the output to a file for further analysis, use:
arp -a > devices.txt
For macOS/Linux the following command will work:
nmap -sn 192.168.0.0/24
(replace 192.168.0.0/24 to your subnet, if it is different).
The result will look something like this:
Nmap scan report for 192.168.0.103Host is up (0.045s latency).
MAC Address: A4:83:E7:12:F5:89 (Apple)
Nmap scan report for 192.168.0.105
Host is up (0.032s latency).
MAC Address: 3C:5A:B4:91:2A:4F (Google)
6. What to do if you find other people's devices on the network
Spotted unfamiliar MAC or IP addresses in the list of connected devices? Here's what to do:
- Disable the unknown device:
- 🔌 Via the router's web interface: find the function
Device lockorMAC filterand add the address to the blacklist. - 📵 Via the app Dom.ru: some versions have an option
Disconnect the device(not available for all router models).
- 🔌 Via the router's web interface: find the function
- Change your Wi-Fi password:
- 🔑 Go to
Wi-Fi Settings → Security(orWireless → Security). - 🔄 Select encryption type
WPA2-PSK(orWPA3, if supported). - 🔐 Create a complex password (at least 12 characters, with numbers and special characters).
- 🔑 Go to
- Enable MAC filtering (optional):
- 🛡️ In your router settings, find the section
MAC Filter. - 📋 Whitelist only the MAC addresses of your devices.
- ⚠️ Please note: this may cause inconvenience if you frequently connect new gadgets.
- 🛡️ In your router settings, find the section
- 🔄 In the section
System → Software UpdateCheck if the firmware is up to date. - 🛠️ Outdated software may contain vulnerabilities that hackers exploit.
If the problem persists after changing the password and blocking devices, your router may have been hacked. In this case:
- 🔧 Reset your router to factory settings (
Resetbutton on the back panel). - 📞 Contact support Dom.ru by phone
8 800 333-70-00- they can remotely check equipment settings.
⚠️ Attention: If you live in an apartment building and use Dom.ru with technology PON (optical terminal), theoretically neighbors can "catch" your signal through ONU splitterIn this case, the only solution is to replace the equipment with more secure equipment (contact your provider).
FAQ: Frequently asked questions about checking connected devices
Is it possible to find out what websites a connected device visits?
No, without specialized software (for example, Wireshark) or parental control settings on your router, you won't be able to see your browsing history. However, you can block access to certain resources through Firewall in the router settings.
Why does my own gadget appear multiple times in the list of connected devices?
This is normal if your smartphone or laptop supports simultaneous connection to multiple Wi-Fi bands (for example, 2.4 GHz And 5 GHz). Also, duplicates can appear due to functions like Wi-Fi Direct or Hotspot 2.0.
Can my neighbor connect to my Wi-Fi if I hide the network name (SSID)?
Hiding SSID does not protect against connection - an experienced user can find your network using a scanner (for example, NetStumbler). This method only makes it more difficult for random users to connect, but does not make the network invulnerable.
How can I check if my router has been hacked?
Signs of hacking:
- 🔴 Unknown devices on the network even after changing the password.
- 🔴 Changed DNS settings in the router (check in
Network → WAN). - 🔴 A sharp drop in internet speed for no apparent reason.
- 🔴 Unable to access the router control panel.
If you notice any of these symptoms, reset your router to factory settings and contact support. Dom.ru.
Is it possible to track the physical location of a connected device?
It is impossible to accurately determine the location of a gadget in a Wi-Fi network, but you can roughly estimate the distance to it based on the signal level (RSSI). Applications like WiFi Analyzer (Android) or NetSpot (Windows/macOS). However, this method only works within the confines of your apartment/house.