How to See Who's Connected to Your Wi-Fi on Your Computer: A Complete Guide

Have you noticed your internet is slower than usual? Or do you suspect that unauthorized devices have connected to your Wi-Fi network? Checking the list of connected devices on your computer is the first step to securing your home network. In this article, we'll cover all available methods, from built-in tools Windows to specialized programs that will show not only the names of devices, but also their MAC addresses, consumed traffic and even geolocation.

It's important to understand that simply detecting "extra" devices is only half the battle. We'll also explain how block unwanted users directly through the router settings or using a firewall Windows DefenderAnd for advanced users, we will provide commands for command line, which will help you track online activity without installing additional software.

If you have never accessed your router's control panel or used utilities like Wireless Network Watcher — Don't worry. The instructions are tailored for beginners, with step-by-step screenshots and explanations of each term. But even experienced administrators will find useful tips here, such as how to track hidden connections via ARP scanning or set up notifications about new devices on the network.

1. Checking through the router control panel

The most reliable way to see all connected users is to access your router's web interface. This method works regardless of your PC's operating system and displays a complete list of devices, including those connected via cable.

To open the Control Panel:

• 🌐 Enter in the address bar of your browser 192.168.0.1 or 192.168.1.1 (the exact address is indicated on the router sticker).
• 🔑 Enter your login and password (by default it is often admin/admin or admin/password).
• 📊 Find the section DHCP Clients, Connected Devices or Local area network (the name depends on the router model).

In the table you will see:

• 📱 Device names (if they are not hidden)
• 🔢 IP addresses And MAC addresses
• ⏱ Connection time
• 📶 Connection type (Wi-Fi or Ethernet)

⚠️ Attention: If you see unfamiliar devices in the list of devices MAC addresses with names like android-123456 or unknownThis is a sure sign that someone else's gadgets are connected. Some routers allow you to block them directly from the interface—look for the button. Block or Block.

2. Using the Windows command line

If you prefer to do without third-party programs, command line This method will help you quickly get a list of devices on your local network. This method requires minimal technical skills but provides detailed information.

Open Command line as administrator (click Win + X and select the appropriate item) and enter the commands sequentially:

arp -a
net view

First team (arp -a) will show the table ARP (Address Resolution Protocol), where each IP address on the network corresponds MAC address. Second (net view) will display a list of computers on the local network (does not work in all configurations).

For more detailed information, please use:

nbtstat -a [IP address]
ping [IP address]

Where [IP address] — the address of a suspicious device from the list. For example, if you see in the results arp -a line 192.168.0.102 with a stranger MAC address, enter:

nbtstat -a 192.168.0.102

What to do if the net view command does not work?

If after entering net view you see the message "The network path was not found", this means that the function NetBIOS is disabled on your network or on target devices. This is normal on modern networks—use it instead. arp -a or specialized utilities.

⚠️ Attention: Teams arp And nbtstat Only devices that have recently communicated with your PC are shown. If another device is connected but inactive, it may not appear in the list. For a full network scan, use utilities like Advanced IP Scanner.

3. Specialized programs for Wi-Fi monitoring

For a deep network analysis, it is more convenient to use programs that automatically scan all connected devices and show their manufacturers (by MAC address) and even evaluate the traffic consumed. Here are the top solutions:

• 🔍 Wireless Network Watcher (free, from NirSoft) — scans the network and displays all devices, indicating the time of first and last detection. Suitable for beginners.
• 📊 Advanced IP Scanner — in addition to the list of devices, it allows you to remotely control some of them (for example, turn off a PC on the network).
• 🛡 GlassWire — Monitors traffic in real time and shows which programs on your PC are consuming internet. Useful for identifying hidden connections.
• 🔗 Angry IP Scanner — a cross-platform, open-source utility. Scans ports and displays open services on devices.

Example of working with Wireless Network Watcher:

1. Download the program from the official website NirSoft (check the file hash for viruses!).
2. Launch WNetWatcher.exe (no installation required).
3. Click Start Scanning - after a few seconds a list of all devices on the network will appear.
4. Pay attention to the columns Device Name, MAC Address And Network Adapter Company (shows the network card manufacturer).

Unfamiliar device names (e.g. "android-XXXX" without your gadgets)

MAC addresses with unusual manufacturers (e.g. "Shenzhen Bilian" instead of "Apple" or "Samsung")

Devices with static IPs (if you haven't assigned them manually)

Suspiciously high traffic from one device-->

To block unwanted devices directly through the program, go to the router settings (as in the first section) and add them MAC addresses blacklisted (MAC Filtering).

Wireless Network Watcher|Advanced IP Scanner|GlassWire|Angry IP Scanner|Other|I don't use-->

4. Analyzing traffic through Windows Defender Firewall

Built-in Windows Firewall It can help not only block suspicious connections but also track which devices are actively using your network. To do this:

1. Open Control Panel → Windows Defender Firewall.
2. Go to Additional options (on the right in the menu).
3. In the left panel, select Firewall Monitor → Active Connections.

Here you will see all current network connections, indicating:

• 🖥 Local IP address (your PC)
• 🌍 Remote IP address (network device or external server)
• 🔄 Protocol (TCP/UDP)
• 📦 Ports

If you see suspicious IP addresses from a local network (for example, 192.168.0.105) that are actively exchanging data with your PC, this may indicate an unauthorized connection. To block such a device:

1. Return to Additional firewall settings.
2. Select Inbound Rules → Create Rule.
3. Please specify Customizable → All Programs.
4. In the section Remote IP address Add a suspicious address.
5. Select Block connection and complete the rule creation.

⚠️ Attention: Blocking through a firewall only affects traffic passing through your PC. A third-party device will still be able to use the internet, but will be unable to connect to your computer (for example, to access shared folders). For complete blocking, use your router settings.

5. Checking via mobile apps

If you don't have a computer at hand, you can check connected devices using your smartphone. Applications for Android And iOS offer a user-friendly interface and additional features, such as notifications about new connections.

Popular apps:

• 📱 Fing (free version with limitations) - scans the network, shows open ports and vulnerabilities. Available for Android And iOS.
• 🔍 Network Scanner (only Android) - identifies device manufacturers by MAC address and builds a network map.
• 🛡 WiFi Guard — compares current connections with a "white list" of your devices and notifies you of new ones.

Example of working with Fing:

1. Connect to your Wi-Fi network.
2. Launch the app and click Scan.
3. In 10-20 seconds you will receive a list of devices indicating:

• 📌 IP and MAC addresses
• 🏷 Manufacturer (based on OUI)
• ⚡ Response speed (ping)
• 🔒 Open ports (in the pro version)

The advantage of mobile applications is the ability to receive notifications when new devices appear. For example, in WiFi Guard You can add all your gadgets to the "white list," and the program will notify you every time an unfamiliar device appears on the network.

6. How to block other people's devices on the network

Once you've discovered foreign devices, it's not enough to simply recognize them MAC addresses — you need to prevent reconnections. Here are three reliable methods:

Method 1: Filtering MAC addresses in the router

1. Go to your router's control panel (as in first section).
2. Find the section MAC Filtering (or MAC address filtering).
3. Add MAC addresses your devices in white list (mode Allow) or other people's addresses in blacklist (mode Deny).
4. Save the settings and reboot the router.

Method 2: Change your Wi-Fi password

If you suspect that your network password has been leaked, the easiest solution is to change it:

1. In the router panel, go to Wireless → Security (or Wireless Network → Security).
2. Select encryption type WPA2-PSK (or WPA3-PSK, if supported).
3. Create a new password (at least 12 characters, with numbers and special characters).
4. Save your changes and reconnect all your devices.

Method 3: Disabling WPS

WPS Wi-Fi Protected Setup (Wi-Fi Protected Setup) is a vulnerable protocol that allows you to connect to a network without entering a password (for example, using a PIN). Disable it in your router settings:

• Find the section WPS or QSS.
• Select Disable or Disable.
• Save the settings.

⚠️ Attention: Filter by MAC addresses It is not 100% protection - experienced users can replace their MAC to allowed. For maximum security, combine this method with changing your password and disabling WPS.

7. Additional Wi-Fi security measures

Checking connected devices is a reactive measure. To minimize the risk of unauthorized access, configure your network in advance:

• 🔒 Use WPA3 - If your router supports this protocol, it is more reliable. WPA2In the wireless network settings, select WPA3-PSK.
• 🌐 Disable remote control of your router — in the section Administration or System tools find the option Remote Management and deactivate it.
• 📡 Hide your SSID - disable network name broadcasting in the settings WirelessThis won't make the network completely invisible, but it will reduce the number of accidental connections.
• 🔄 Update your router firmware — Manufacturers regularly patch vulnerabilities. Check for updates in the section Firmware Upgrade.
• 🛡 Set up a guest network If you have frequent guests, create a separate network with limited access to local resources.

For advanced users:

• 📈 Limit your bandwidth — in the settings QoS (Quality of Service) you can prioritize traffic for your devices and limit it for others.
• 🕒 Set up a Wi-Fi schedule - If you only need the Internet during certain hours, turn off the network for the rest of the time (option Wireless Schedule).

How to check if your router supports WPA3?

Go to your wireless network settings (Wireless Settings). If the list of encryption types includes WPA3-PSK or WPA2/WPA3-PSK, your router supports the new standard. If not, check the manufacturer's website for a firmware update.

FAQ: Frequently asked questions about checking your Wi-Fi network

Is it possible to see what websites connected devices are visiting?

Through the standard router tools - no. However, some models (for example, ASUS with firmware Asuswrt-Merlin) support traffic logging. An alternative is to configure DNS server with logging (for example, Pi-hole) or use programs like GlassWire on your PC to monitor outgoing traffic.

Why are unfamiliar devices displayed in the list? MAC addresses with the names of my gadgets?

This may be due to:

• 📱 Virtual devices (For example, Android creates separate MAC addresses for different types of connections).
• 🔄 Changing the MAC address (Some applications, such as network testing applications, temporarily change MAC).
• 🖥 Network adapters (laptops can have several network cards - Wi-Fi, Ethernet, Bluetooth).

To check, compare MAC addresses in the router list with those displayed in the network settings on your devices.

How to find out what device is hidden behind MAC address?

First 6 characters MAC addresses (For example, 2C:54:91) indicate the manufacturer. Check them using databases like:

• MAC Vendors (online service)
• getmac /v /fo list (team in Windows to view your addresses)

If the address belongs Apple, but you don’t have devices of this brand - this is a sure sign of an outside connection.

What should I do if someone else's device reconnects despite being blocked?

Possible causes and solutions:

• 🔄 MAC address is replaced - use additional measures: change the password, disable WPS, setting QoS.
• 📡 Router vulnerability - update the firmware and disable remote control.
• 🔌 Connection via cable — check the router's physical ports for unknown devices.

If the problem persists, consider purchasing a router that supports it. WPA3 and function Intrusion Prevention.

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

The exact location cannot be determined, but it can be estimated signal level (RSSI), which indirectly indicates the distance to the router:

• In the program Wireless Network Watcher see column Signal Quality.
• In mobile applications (for example, Fing) - chapter Signal Strength.

The weaker the signal (for example, -80 dBm), the further the device is from the router. This will help you distinguish between a neighbor's device connected through the wall and a device in your apartment.