A modern home network connects dozens of gadgets, from smartphones and laptops to smart light bulbs and refrigerators. Traffic control It's becoming more than just a whim, but a necessity for ensuring the security of personal data. Internet speeds often drop for no apparent reason, and the first suspicion is that someone is accessing the internet illegally.
operating system Windows 10 provides basic tools for monitoring activity, but they're not always obvious to the average user. To understand who's actually using your network, you need to use a combination of built-in utilities and third-party software. In this article, we'll cover all available methods, from simple commands to in-depth port analysis.
It's important to understand that the standard system interface will not show you a complete list of all devices connected to the router. The operating system only sees those devices with which your computer is directly exchanging data at the moment.To obtain a complete picture, more advanced diagnostic methods will be required.
Using the command line for initial analysis
The fastest way to get basic information about your network environment is to use the console. This method doesn't require installing any additional software and works even on basic OS versions. You'll need to run the terminal with administrator privileges to get complete information.
Enter the command arp -a and press Enter. A table of IP addresses and physical MAC addresses will be displayed on the screen. This is the so-called ARP cache, which stores data about recent connections.
Pay attention to the "Physical Address" column. This is how you can identify the device's manufacturer using specialized online services. However, keep in mind that this table may not include all gadgets, only those that your PC has already interacted with.
For a more detailed view of network connections in real time, use the utility netstat. Team netstat -an will show all active TCP and UDP connections, as well as ports that are in listening mode.
How to decipher a MAC address?
The first six characters of a MAC address (e.g., 00:1A:2B) are the manufacturer identifier. Entering this code into a search engine along with the word "OUI lookup" will reveal the brand of the device (Apple, Samsung, Xiaomi, etc.). This will help you determine whose phone or laptop is connected to the network.
Checking through router settings: the most reliable method
The only way to see absolutely all devicesConnected to your WiFi network, you need to log into your router's control panel. The router is the central hub and knows about every client it has assigned an IP address to.
To log in, enter the gateway IP address in the browser's address bar. This is usually 192.168.0.1 or 192.168.1.1The exact address can be found by running the command ipconfig in the command line and find the "Default gateway" parameter.
After logging in (your login and password are often found on a sticker on the bottom of the device), find a section titled something like "Wireless Statistics," "DHCP Client List," or "Client List." A complete table of active connections will be displayed there.
⚠️ Please note: Router firmware interfaces are constantly being updated. The location of the "Client List" menu may vary depending on the model (TP-Link, ASUS, D-Link) and firmware version. If you cannot find the section you need, consult the official manual for your specific model.
Specialized software for network scanning
If you don't want to mess around with the command line or mess with your router settings, third-party programs can help. They automate the process and present the data in a convenient graphical format. One of the most popular tools is Advanced IP Scanner.
This utility scans the entire address range of your subnet and displays device names, network card manufacturers, and even allows access to shared folders. The program is fast and requires no complicated installation.
Another powerful tool is WireSharkThis is a professional traffic analyzer that will show every data packet passing through your network adapter. While the stream of hex codes may be difficult for beginners to understand, it's an indispensable tool for in-depth diagnostics.
- 📡 Advanced IP Scanner - ideal for quickly checking all active hosts on a local network.
- 🛡️ Angry IP Scanner — a cross-platform, open-source scanner that can check open ports.
- 📊 SoftPerfect WiFi Guard — specializes in detecting unauthorized access and alerting about new devices.
☑️ Network security check
Analyzing network connections using PowerShell
For users who prefer modern Microsoft tools, PowerShell offers more flexibility than the classic CMD. Scripts can output information in a structured format and even save logs.
Use the command Get-NetNeighbor to get a similar output to the ARP table, but with a more readable output. This command will show the status of neighbors on the network and their link addresses.
To monitor active processes using the network, enter Get-NetTCPConnectionYou'll see which process (executable file) is using which port and where the connection goes. This is useful for detecting hidden miners or spyware.
You can filter the output to show only established connections by adding the parameter -State EstablishedThis will remove unnecessary information about ports that are simply waiting for a connection, and leave only the actual data exchange.
Table of basic commands for diagnostics
To save you the trouble of searching through multiple sources, we've compiled the most important commands into a single summary table. Save it or bookmark it for quick reference during troubleshooting.
| Team | Purpose | Where to launch |
|---|---|---|
arp -a |
Show ARP cache (IP and MAC addresses) | cmd, PowerShell |
ipconfig /all |
Complete information about network adapters | cmd, PowerShell |
netstat -an |
TCP/UDP connection and port statistics | cmd, PowerShell |
getmac /v |
Display MAC addresses of all interfaces | cmd |
nbtstat -n |
NetBIOS statistics and network names | cmd |
What to do if an unknown device is detected
If you see a device in the list of connected clients that doesn't belong to you, you need to act quickly. First, change the WiFi network password in the router settings. This will disconnect all users, and you'll have to reconnect your trusted devices.
Check if the feature is enabled WPSThis technology allows you to connect without entering a password, simply by pressing a button, but it has known vulnerabilities. It's best to disable WPS completely in modern routers.
It's also worth checking your MAC filter list. You can configure your router to allow only a specific list of devices onto the network. All others, even with the password, won't be able to connect.
⚠️ Note: Some operating systems (such as iOS and recent versions of Android) use a "Private Wi-Fi Address" (Randomized MAC) feature. This means that your device presents itself to the router with a different address each time, which can confuse you when trying to identify it.
FAQ: Frequently Asked Questions
Is it possible to find out what websites other devices on my WiFi network are visiting?
Not using standard Windows tools. You only see the connection and the amount of data transferred. Viewing traffic (URLs) requires complex packet sniffing techniques (man-in-the-middle), certificate configuration, and extensive knowledge of network security, which is rarely used in home settings and may be illegal.
Why does the list of devices show more gadgets than I have?
Often, a single physical device creates multiple virtual interfaces. For example, virtual Bluetooth adapters, VPN clients, Android emulators, or virtual machines can appear as separate network nodes with their own IP addresses.
How do I hide my device from the list of connected devices in Windows?
It's impossible to completely hide from the network administrator or router owner, as the device must have an IP and MAC address for the network to function. However, you can disable network discovery in Windows settings (Network & Internet → Sharing Options) so that your local network neighbors don't see your computer in the "Network" list.
Does the number of connected devices affect my internet speed?
Yes, the WiFi channel is shared among all active users. If someone is watching 4K video or downloading torrents, your speed may drop significantly. Additionally, a large number of devices puts a strain on the router's processor, which can cause it to freeze.