Who's Connected to My Wi-Fi? A Complete Guide to Checking Your Network

Have you noticed that your internet has become slower and your data usage is running out faster than usual? Perhaps, your Wi-Fi third-party devices—neighbors, guests, or even hackers—connected. According to statistics, more than 30% of home networks have unprotected passwords or vulnerabilities that allow third parties to use your internet without permission. In this article, we'll look at how check the list of connected devices, identify unknown gadgets and block them permanently.

The problem isn't just traffic theft. Other people's devices can intercept your personal data, spread viruses over the local network, or use your IP for illegal activitiesFor example, in 2023, cyberattacks through home routers increased by 18%—most of them began with connecting to an unsecured network. We will show legal ways to monitor a network without breaking the law (unlike scanners like Wireshark, which require special knowledge).

You don't need any technical skills: all methods are adapted for everyday users. We'll start with the simplest ones—via the router's web interface—and then explore mobile apps and advanced tools for experienced users. If you're a renter or live in a dorm, a separate section will help you understand how to share your network according to rules without blocking your neighbors.

1. Checking via the router's web interface (the most reliable method)

Any modern router keeps a log of connected devices. To view it, you need to log into the admin panel. The login address is usually located on a sticker on the back of the device (e.g., 192.168.0.1 or 192.168.1.1). If there is no sticker, try standard combinations:

• 🔹 TP-Link: tplinklogin.net or 192.168.0.1
• 🔹 ASUS: router.asus.com or 192.168.1.1
• 🔹 Keenetic: my.keenetic.net or 192.168.1.1
• 🔹 D-Link: 192.168.0.1 or dlinkrouter.local

After entering the address in your browser, a login window will appear. Use the login and password from the sticker (usually admin/admin or admin/empty field). If the data is not suitable, the router may have been reconfigured - try resetting the settings using the button Reset (hold for 10 seconds).

Check your network connection (cable or Wi-Fi) | Restart the router using the power button | Try a different browser (Chrome, Firefox) | Reset the settings using the Reset button (if you forgot your password) -->

In the Control Panel, find the section with the list of devices. Its name depends on the model:

In the list you will see MAC addresses, IP addresses and device names (if they are not hidden). Pay attention to unknown gadgets with names like "Android-1234", "iPhone-5678" or even without a name. They can be blocked directly in this menu—there's usually a button Block or Block.

2. Mobile apps for Wi-Fi monitoring

If accessing your router settings is inconvenient, use dedicated apps. They scan your network and display all connected devices with detailed information, including model, manufacturer, and connection time. The best free options are:

• 📱 Fing (Android/iOS) — detects even hidden devices, tests network speed.
• 📱 WiFi Guard (Android) — compares current connections with the "white list" of your gadgets.
• 📱 NetScan (iOS) - shows MAC addresses and hostnames, exports reports.
• 📱 Who Is On My WiFi (Android) - Sends notifications about new devices.

Example of working with Fing:

1. Download the application and open it.
2. Click Scan the network (button in the center of the screen).
3. Wait for the scanning to complete (10-30 seconds).
4. Review the list of devices. Unknown ones are marked in red.

Please note: apps only show devices that were active at the time of scanning. If someone else's device connected overnight, it may not be listed. For continuous monitoring, set up notifications about new connections in the application settings.

Fing|WiFi Guard|NetScan|Who Is On My WiFi|Other/Not Using-->

⚠️ Attention: Some applications (eg. WiFi Kill) promise to "kick" other people's devices off the network. Their use may violate the law on unauthorized access to someone else's data (Article 272 of the Russian Criminal Code). Block devices only through the router settings!

3. How to recognize someone else's device: signs and clues

Not all unknown devices on the network are malicious. These could be:

• 📡 Smart speakers (For example, Yandex Station or Amazon Echo).
• 💡 Light bulbs with Wi-Fi (Xiaomi Yeelight, Philips Hue).
• 🎮 Game consoles (PlayStation, Nintendo Switch).
• 🖥️ Guest devices, to whom you gave the password before.

To distinguish yours from someone else's, follow the algorithm:

1. Check the MAC address. The first 6 characters indicate the manufacturer. For example:
   • B8:27:EB — Raspberry Pi.
   • 78:31:C1 — devices Apple.
   • 5C:CF:7F - gadgets Samsung.

A full list of prefixes can be found on the website MAC Vendors.

Compare with your gadgets. You can view the MAC addresses of your devices:

• On Android: Settings → About phone → General information → Wi-Fi MAC address.
• On iOS: Settings → General → About → Wi-Fi Address.
• On Windows: Run the command

  ipconfig /all

  V Command line.
• Look at the host name. Other people's devices often have standard names like android-123456 or desktop-abcdef.

If a device seems suspicious but you're unsure, turn it off for a while and monitor your internet speed. If it increases, you're dealing with a "spammer."

What to do if the MAC address is spoofed?

Attackers can spoof MAC addresses to disguise themselves as legitimate devices. In this case, the only solution is to completely change the Wi-Fi password and enable MAC filtering in the router settings (under "Wireless Network → MAC Filter").

4. Advanced Methods: Scanning the Network via a Computer

For experienced users, there are more in-depth network analysis methods. These require additional software but provide the most comprehensive information.

Method 1: Utility Angry IP Scanner (Windows/macOS/Linux)

1. Download the program from the official website (the free version is sufficient).
2. Please enter your network IP address range (e.g. 192.168.1.1–192.168.1.255).
3. Run the scan. In a few minutes, you'll receive a list of all active hosts.
4. Export the report to CSV for further analysis.

Method 2: Windows Command Prompt

Run the command:

arp -a

It will display a table of IP and MAC address mappings. For detailed traffic analysis, use:

netstat -ano | findstr "ESTABLISHED"

Method 3: Linux/macOS Terminal

To scan the network, enter:

nmap -sn 192.168.1.0/24

To see open ports on a suspicious device:

nmap -sV 192.168.1.100

(replace 100 to the last octet of the device's IP address).

⚠️ Caution: Use nmap or Wireshark Scanning other people's networks (such as your neighbors') may be considered a hacking attempt. Use these tools only on your home network!

5. How to block someone else's device: step-by-step instructions

Found a strange gadget? Here's how to disable it permanently:

Method 1: Through the router control panel

1. Go to the router's web interface (see Section 1).
2. Find the section with Wi-Fi clients (for example, DHCP → Clients).
3. Select someone else's device and press Block, Block or Add to Blacklist.
4. Save the settings and reboot the router.

Method 2: Filtering by MAC address

1. Copy the MAC address of someone else's device.
2. Go to Wireless Network → MAC Filter.
3. Add the address to the blacklist.
4. Activate filtering and save.

Method 3: Change your Wi-Fi password

If there are many unknown devices or they appear regularly:

1. Go to Wi-Fi Settings → Security.
2. Select encryption type WPA2-PSK or WPA3.
3. Create a complex password (at least 12 characters with numbers and special characters).
4. Save the changes - all devices will disconnect and will need to reconnect.

6. Common mistakes and how to avoid them

Users often encounter problems when checking connected devices. Here are the most common ones:

• 🔌 "The router doesn't show all devices." — Some gadgets (such as smartwatches) only connect periodically. Scan at different times of day.
• 🔒 "I forgot my router password." - reset the settings with the button Reset, but keep in mind that this will disconnect all network users.
• 📵 "The app doesn't see the network." - Check if you are connected to the same Wi-Fi as the devices you are scanning.
• 🛡️ "The lock doesn't work." - update the router firmware (section Administration → Software Update).

Another typical mistake is ignoring guest networkIf you've enabled it for friends but haven't disabled it, strangers can connect without restrictions. Check the guest access settings in the section Wi-Fi → Guest Network and turn it off if you don't use it.

⚠️ Attention: Some providers (eg Rostelecom or Beeline) block access to router settings if it's rented. In this case, please contact support and request login details.

7. Legal aspects: what is possible and what is not

In Russia, monitoring your home network is legal, but there are some caveats:

• ✅ Can:
  • View a list of connected devices on your network.
  • Block other people's gadgets through your router settings.
  • Change your Wi-Fi password to protect against unauthorized access.
• ❌ It is forbidden:
  • Connecting to other people’s networks without permission (Article 272 of the Criminal Code of the Russian Federation).
  • Use password cracking programs (eg. Aircrack-ng).
  • Intercept other users' traffic (even if they are connected to your network illegally).

If you discover that someone is intentionally hacking your Wi-Fi (for example, using password-guessing programs), you can file a police report under Article 273 of the Russian Criminal Code ("Creation, use, and distribution of malicious computer programs"). However, this will require evidence—router logs or screenshots of password-guessing attempts.

In public places (cafes, hotels), checking connected devices may be considered a privacy violation. Network administrators have the right to monitor traffic, but private individuals do not.

FAQ: Answers to Frequently Asked Questions

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

Technically yes, using programs like Wireshark or settings Traffic logs in the router. However, this violates Federal Law No. 152-FZ "On Personal Data"You can block devices, but you don't have the right to analyze their traffic without consent.

Why does the router show devices that are not at home?

Possible reasons:

• Smart devices (eg Roborock or Redmond) connect to the network even when turned off.
• Your neighbors are using a Wi-Fi repeater that is picking up your network.
• It's turned on in the router WPS - it needs to be disabled in the security settings.

How to protect Wi-Fi from hacking?

Follow the checklist:

1. Set a password of at least 12 characters with numbers and special characters.
2. Turn it off WPS And Remote administration.
3. Enable MAC address filtering (if there are few devices).
4. Update your router firmware to the latest version.
5. Hide the network name (SSID) in the settings (option Hide SSID).

What should I do if my neighbor refuses to disconnect from my Wi-Fi?

Procedure:

1. Change your Wi-Fi password to a more complex one.
2. Enable MAC address filtering.
3. If your neighbor continues to connect, file a police report for unauthorized access (Article 272 of the Russian Criminal Code). Please include screenshots of the router logs.

Do not threaten your neighbor yourself - this may be regarded as extortion.

Is it possible to track the physical location of a device on my network?

The exact location cannot be determined, but the distance can be roughly estimated:

• In apps like Fing see parameter Signal Strength (signal strength). The lower the value (for example, -80 dBm), the further away the device is.
• If the signal strength is -30...-50 dBm, the gadget is in the same room.
• At -70...-90 dBm - in a neighboring apartment or on the street.

For accurate tracking, specialized tools are needed (for example, Wi-Fi triangulation), which are not available to ordinary users.