How to Check Who's Using Your Wi-Fi Router: A Complete Guide

Have you noticed your internet speed has slowed down? Or do you suspect unauthorized devices have connected to your Wi-Fi network? In this article, we'll cover how to check the list of devices connected to your router—from standard web interface methods to specialized apps and the command line.

Regardless of the model of your router, be it TP-Link, ASUS, Keenetic or MikroTik — you'll be able to track all the "guests" of your network. And if you discover any unfamiliar devices, we'll show you how to block them and protect your router from unauthorized access in the future.

It's important to understand: some methods require access to your router settings, while others work remotely from your phone or computer. Choose the method that's most convenient for you and follow the step-by-step instructions.

1. Checking via the router's web interface

The most reliable and universal method is to access the router control panel through a browser. This doesn't require any additional software, just login credentials (username and password for the admin panel).

Algorithm of actions:

• 🔌 Connect to the router via cable or Wi-Fi.
• 🌐 Open your browser and enter your router's IP address in the address bar. This is usually 192.168.0.1 or 192.168.1.1. For models Keenetic use my.keenetic.net.
• 🔐 Enter your login and password (by default it is often admin/admin, but may differ).
• 📊 Find the section with connected devices. Depending on the firmware version, it may be called:
  • DHCP clients (For TP-Link)
  • List of devices or Wireless Clients (For ASUS)
  • Devices on the network (For Keenetic)

In this section, you'll see a table with the MAC addresses, IP addresses, and names of all connected devices. If you recognize any of them, write down their MAC addresses for future blocking.

⚠️ Important: If you haven't changed the default password for your router's admin panel, any user connected to your network can access the settings and change them. Be sure to set a strong password after testing!

2. Using mobile applications

For convenience, router manufacturers release official apps that allow you to manage your network from your smartphone. This is especially useful if you need to quickly check your connected devices without access to a computer.

Popular apps:

• 📱 Tether (For TP-Link) - shows a list of devices, traffic consumption speed and allows you to block strangers.
• 📱 ASUS Router - displays detailed information about each client, including connection history.
• 📱 Keenetic — supports push notifications about new connections.

How to check via the app:

1. Download the official app for your router model from App Store or Google Play.
2. Log in using your router admin credentials.
3. Go to the section "Devices" or "Net".
4. Browse the list of connected gadgets. Apps typically show not only active devices but also recently connected ones.

The advantage of mobile apps is the ability to receive notifications about new connections in real time. For example, Keenetic can send an alert to your phone if an unknown device connects to the network.

3. Windows Command Prompt (for advanced users)

If you have a computer on WindowsYou can check connected devices without accessing the router settings—via the command line. This method is suitable for quick diagnostics, but only displays currently active devices.

Instructions:

1. Click Win + R, enter cmd and press Enter.
2. Enter the command:

   arp -a

   It will display the ARP (Address Resolution Protocol) table with the IP and MAC addresses of all devices on the local network.

3. Compare the received addresses with a list of known gadgets. Unknown MAC addresses can be checked using online services (for example, MAC Vendors) to determine the manufacturer of the device.

Example of command output:

Interface: 192.168.1.100 --- 0x12
Internet Address Physical Address Type
192.168.1.1 aa-bb-cc-dd-ee-ff dynamic
192.168.1.101 11-22-33-44-55-66 dynamic

Please note: This method shows all devices on the local network, including those connected via cable. To filter only Wi-Fi clients, you'll need to access your router settings.

4. Specialized programs for network scanning

If standard methods aren't suitable or you want more detailed information about connected devices, you can use third-party programs. They scan the network and display detailed data, from MAC addresses to bandwidth usage.

Popular utilities:

How to use Wireless Network Watcher:

1. Download the program from the official website NirSoft (it does not require installation).
2. Launch WNetWatcher.exe.
3. Click "Start Scanning" — the program will scan the network and show all connected devices.
4. For convenience, sort the list by column "Device Name" or "MAC Address".

The advantage of such programs is that they work even if you don't have access to your router settings (for example, on an office network). However, to block unknown devices, you'll still need to log into the router's admin panel.

Write down its MAC address|Try disabling it through the router admin panel|Check if a guest has connected with your permission|Change the Wi-Fi password if you suspect hacking-->

5. How to block other people's devices

If you find unfamiliar gadgets online, you need to block them. This can be done in two ways: MAC address filtering or changing the Wi-Fi password.

Method 1: Filtering by MAC address

1. Go to your router settings (see Section 1).
2. Find the section "Wireless Network" → "MAC Filter" (the name may differ).
3. Add MAC addresses of unknown devices to the blacklist.
4. Save the settings and reboot the router.

Method 2: Change your Wi-Fi password

1. In the router settings, go to Wireless Network → Security.
2. Change your password to a complex one (at least 12 characters, with numbers and special characters).
3. Select encryption type WPA2-PSK or WPA3 (if supported).
4. Save the changes - all devices will be disconnected and will need to reconnect.

If your internet speed improves after being blocked, it means that an unauthorized device was indeed consuming your data. Otherwise, the problem may be bandwidth congestion or a faulty router.

⚠️ Note: MAC address filtering is not 100% secure. An experienced user can spoof their device's MAC address. For added security, combine this method with changing your password and disabling the feature. WPS (it is vulnerable to hacking).

6. How to protect your router from future hacking

To prevent unauthorized connections to your network, follow these guidelines:

• 🔒 Change the default admin password - Use a complex combination that does not match your Wi-Fi password.
• 📡 Disable WPS — This feature simplifies the connection, but makes the network vulnerable to brute-force attacks.
• 🔄 Update your router firmware — Manufacturers regularly patch vulnerabilities in new versions of software.
• 📵 Hide your SSID (network name) - this will not make the network completely invisible, but will reduce the number of accidental connections.
• 🕒 Set up a Wi-Fi schedule - Turn off the network at night if it is not in use.

The most common mistake users make is using default passwords like "12345678" or "qwerty." According to statistics, 30% of routers are hacked due to weak security.

Additional security measures:

• 🌐 Use guest network For temporary connections (for example, with friends). It's isolated from the main network and has a separate password.
• 📊 Turn on connection logging (if supported by your router) - this will help you track when and which devices connected to the network.

How do they hack Wi-Fi networks?

The most common hacking methods are:

1. Brute-force WPS — selection of a PIN code (8 digits) in a few hours.

2. Dictionary attack on WPA2 — brute-force passwords from a database of frequently used combinations.

3. Exploiting firmware vulnerabilities - for example, through vulnerability Krack (2017) or errors in the web interface.

4. Phishing — creating a fake network with a similar name (for example, "MegaFon_FREE" instead of "MegaFon_123").

To protect yourself, use complex passwords, disable WPS, and update your firmware regularly.

7. Common mistakes and their solutions

Users often encounter difficulties when checking connected devices. Let's look at the most common issues and how to solve them.

Problem 1: I can't access my router settings.

• 🔹 Check if you are entering the correct IP address. TP-Link And ASUS this is usual 192.168.0.1 or 192.168.1.1.
• 🔹 Make sure you are connected to this router's network (via cable or Wi-Fi).
• 🔹 Try resetting the router to factory settings (button Reset on the back panel) and log in with the standard login/password.

Problem 2: The list of devices shows unfamiliar MAC addresses, but these are my devices

Some devices (eg Xiaomi or Samsung SmartThings) may appear under technical names. To identify them:

1. Disconnect all your devices from the network.
2. Connect them one by one and see which MAC address appears in the list.
3. Use services like MAC Vendors to determine the manufacturer by MAC.

Problem 3: After blocking, the device reconnects

This can happen for two reasons:

• 🔹 The device's MAC address has been changed (spoofed). In this case, changing the Wi-Fi password is the only solution.
• 🔹 The device connects via WPSDisable this feature in your router settings.

⚠️ Attention: If after all manipulations unknown devices continue to appear on the network, your router may be infected with malware (for example, VPNFilter or Mirai). In this case, only a full reset and a firmware update from the manufacturer's official website will help.

FAQ: Answers to Frequently Asked Questions

Is it possible to check connected devices without access to the router?

Yes, but with limitations. You can:

• Use programs like Fing or Wireless Network Watcher - They scan the local network and show all devices.
• IN Windows use the command arp -a (cm. Section 3).

However, these methods do not allow you to block other people's devices; this requires access to the router's settings.

How to determine which device belongs to an unknown MAC address?

There are several ways:

1. Enter the MAC address into a search engine or on a website MAC Vendors - this will show the manufacturer of the device (for example, Apple, Samsung, Xiaomi).
2. Look at the first 3 bytes of the MAC address (eg. B8:27:EB - This Raspberry Pi, 78:31:C1 — Apple).
3. Disconnect all your devices and see if the unknown MAC remains in the list.

What should I do if my router doesn't show a list of connected devices?

Possible causes and solutions:

• 🔹 Outdated firmware - update it through the section System → Software Update.
• 🔹 DHCP server is disabled - check the settings in the section Local Area Network → DHCP.
• 🔹 Some budget router models don't display a list of devices. In this case, use third-party programs (see Section 4).

Is it possible to find out what websites a connected device visits?

Yes, but for this you need:

1. Install alternative firmware on the router (for example, DD-WRT or OpenWRT), which supports traffic logging.
2. Use specialized software like Wireshark (requires skills in working with network protocols).
3. Tune DNS monitoring through services like OpenDNS or Pi-hole.

Please note: Tracking other devices' traffic may violate privacy laws in your country.

How to protect your network from neighbors who connect without permission?

Effective measures:

• 🔹 Use WPA3 instead of WPA2 (if the router supports it).
• 🔹 Turn it off WPS And UPnP - These functions are often exploited by hackers.
• 🔹 Set up MAC address filter (whitelist) - allow connections only to known devices.
• 🔹 Reduce your Wi-Fi transmission power if your neighbors are physically far away—this will reduce your network's range.
• 🔹 Change your Wi-Fi password regularly (every 2-3 months).