In the age of ubiquitous smart gadgets, controlling access to your home network is becoming critical. You may have noticed your internet speed has suddenly dropped, or your router has started to run hotter than usual without any apparent load. Often, these anomalies are caused by unauthorized users accessing your Wi-Fi, or by forgotten old devices that continue to consume bandwidth in the background.
There are several proven methods that allow you to accurately determine who is using your network connection right now. Router admin panel provides the most comprehensive information, but it's not always possible to access the settings through a browser. In such cases, specialized PC utilities and mobile apps that scan the airwaves and identify all active nodes on the local network come to the rescue.
In this article, we'll take a detailed look at diagnostic methods for hardware from different manufacturers, examine client display features in popular operating systems, and learn how to distinguish system processes from real security threats. Understanding how DHCP server and how it distributes IP addresses will help you not only see a list of devices, but also manage them effectively, blocking unwanted guests.
Using the router's web interface to analyze the network
The most reliable and accurate way to obtain information about all connected clients is to directly access the internet source, that is, your router. The web interface of any modern router, whether TP-Link, Asus or Keenetic, contains a section with a list of active connections. To access this data, you need to know the gateway IP address, which by default is often 192.168.0.1 or 192.168.1.1.
After entering the address in the browser's address bar, the system will ask for your username and password. If you've never changed these details, they may be the default (admin/admin), but for security reasons default password It's best to change it immediately after purchasing the equipment. After logging in, look for a tab with a name like "Client List," "Wireless Statistics," or "DHCP Server," which displays all active sessions.
In this section, you'll see the devices' MAC addresses, IP addresses, and, often, hostnames. The hostname can reveal the specific device connected, for example, "Ivan-iPhone" or "Samsung-TV." However, manufacturers sometimes hide the actual names, replacing them with generic names, so for accurate identification, you may need to check the MAC addresses against the physical labels on the devices.
⚠️ Please note: Some internet service providers provide subscribers with routers with hidden or limited access to settings. If the default logins and passwords don't work, and there's no unique password on the device, you may need to perform a factory reset, which will disconnect your connection to the internet service provider until you can configure it again.
Interfaces vary widely across manufacturers, and menu navigation can be confusing for inexperienced users. The table below provides example paths to the relevant sections for popular brands:
| Manufacturer | Path to the menu | Section title |
|---|---|---|
| TP-Link | Wireless -> Wireless Statistics | Wireless statistics |
| Asus | Network Map -> Clients | Client list |
| Keenetic | My Networks and Wi-Fi -> Home Network | List of devices |
| D-Link | Advanced Settings -> Status | Clients |
Checking connected devices on Windows and macOS
If access to the router is blocked for some reason, or you are on your computer and don't want to enter the administrator password, you can use the operating system's built-in tools. In Windows, there is a command arp -a, which displays a table of IP addresses and physical MAC addresses of all devices with which your computer has recently communicated. This isn't a complete list of all Wi-Fi clients, but it will show active network neighbors.
To run the utility, open the command line by pressing Win + R and entering cmdIn the window that opens, enter the command and press Enter. You'll see a list of addresses, where the first IP usually belongs to the router itself, and the rest belong to devices on the network. However, this method requires reading comprehension. MAC addresses and doesn't always show device names, making it more suitable for advanced users.
macOS users can use the Network Utility or Terminal with a similar command arp -aIn newer versions of macOS, the utility's functionality was limited, so Terminal remains the most reliable tool. You can also view connection details in macOS by Option-clicking the Wi-Fi icon, but this will only show the parameters of your current connection, not a list of all clients.
Why might the list in Windows be incomplete?
The ARP protocol caches only those addresses with which data packets have been exchanged. If a device on the network is simply connected and waiting for traffic but hasn't communicated with your PC, it may not appear in the list until the first ping or access.
To get a more beautiful and clear image on your computer, it is better to use third-party software. Programs like Advanced IP Scanner or Angry IP Scanner They scan the entire address range and return the results in a convenient list with the names of network card manufacturers. This significantly simplifies the task of identifying rogue connections.
Mobile apps for network scanning
Modern smartphones have become powerful network diagnostic tools. Numerous apps have been developed for Android and iOS that allow you to see all the users on your Wi-Fi network with a single click. The leader in this niche for many years has been Fing, which not only displays a list of devices, but also identifies their type (TV, printer, phone) and chip manufacturer.
The principle behind these applications is simple: they send a broadcast request to the local network and collect responses from all active nodes. This allows you to see even devices that aren't transmitting data right now but are connected. Besides Fing, other popular ones include Network Analyzer And WiFi Analyzer, offering additional functions for analyzing signal and channel quality.
It's important to understand that on iOS, due to Apple's security policies, apps have limited access to network data. They can display a list of connected devices, but they won't be able to perform deep port scans or run ping tests without using special local servers or local network permissions, which must be manually approved.
When using mobile scanners, pay attention to the permissions you grant to the app. To function correctly, they need access to local networkWithout this permission, you'll only see your phone and possibly your default gateway, but the rest of your network will remain hidden.
Specifics of client detection on routers of different brands
Each network equipment manufacturer implements monitoring functionality differently. For example, routers Keenetic are famous for their user-friendly interface, where each device can be assigned a clear name and icon. In the system Keenetic OS The "Device List" section shows not only current clients but also connection history, which helps identify who accessed the network yesterday or a week ago.
Devices from TP-Link Newer firmware versions (especially the Archer and Deco series) often require the use of a mobile app. Tether For complete management. The web interface can be simplified, and all detailed traffic statistics for each client are located directly in the app. This is designed for user convenience, but can sometimes be inconvenient if you need to quickly check the list from a PC.
Routers Asus with firmware Asuswrt Provide perhaps the most detailed graphical information. The main page of the web interface displays a real-time load graph and a list of clients by device type (PC, Mobile, TV, Game console). Here, you can instantly block access or limit the speed for a specific user by simply dragging them into the appropriate block.
⚠️ Note: Firmware interfaces are updated regularly. Menu locations and item names may change. If you can't find the section you're looking for, use the router settings search (if available) or refer to the instructions on the manufacturer's official website for your model.
Mesh systems, such as Google Nest Wifi or TP-Link DecoThe concept of "router" is vague in these apps, as management is performed exclusively through a cloud app. There, you can not only view a list of devices but also create a guest network or schedule access for children's devices, which is a powerful parental control tool.
☑️ Network security check
How to identify unknown devices by MAC address
You'll often see lines in the list of connected devices with names like "Unknown," "Android-xyz," or simply a string of numbers and letters. This is a MAC address—a unique identifier for a network interface consisting of 12 hexadecimal characters. The first six characters of this address (OUI) identify the device's manufacturer, allowing you to identify what's connected to your network.
To decode the card, you can use online MAC address lookup services or OUI tables. By entering the first six characters, you'll find out which manufacturer the card belongs to. For example, the prefix 00:1A:2B may belong to Sony, and 3C:5A:B4 — Xiaomi. This helps distinguish a smart light bulb from your neighbor's unknown laptop.
However, it is worth considering that modern operating systems (iOS 14+, Android 10+) use the function MAC address randomization To protect your privacy, this means your iPhone may appear to the router as a random address different from its actual physical MAC address. Therefore, the same device may appear as a new one each time you reconnect if this feature is enabled.
Security measures and blocking of unauthorized users
If you discover an unknown device during the scan, you need to act immediately. The easiest and most effective way is to change your Wi-Fi password. After changing the security key, all devices will be disconnected, and you'll have to reconnect them using the new password. This is guaranteed to kick out any "freeloaders" from the network.
A more flexible method is to use MAC address filteringYou can create a whitelist in your router settings, adding only your devices. All other devices, even with the password, will be unable to connect. The downside of this method is the labor involved: for each new device (a guest's phone, a new tablet), you'll have to manually enter its MAC address into the router settings.
It's also recommended to disable the WPS (Wi-Fi Protected Setup) feature, which allows you to connect by pressing a button. This feature has vulnerabilities that allow attackers to brute-force the PIN code and access the network even without knowing the master password. Disabling WPS will significantly increase your network security.
⚠️ Important: When enabling MAC address filtering, make sure you've added the device you're configuring the router from to the allowed list. Otherwise, you may block yourself and lose access to network management, which will require a full reset of the router using the Reset button.
Regularly checking the list of connected clients should become a habit, especially if you live in a densely populated apartment building. Network control is not only a matter of internet speed but also a fundamental element of digital hygiene and the security of your personal data.
Why does the router show more devices than I have?
Often, a single physical device creates multiple virtual interfaces. For example, a smartphone may have a separate MAC address for the "Access Point" function or for the 2.4 GHz and 5 GHz frequencies. Furthermore, the list may include virtual devices created by antivirus software or virtualization programs.
Can my neighbor steal my internet if I changed my password?
If you've changed your password to a strong one (containing letters, numbers, and special characters) and use the modern WPA2/WPA3 encryption standard, it's virtually impossible to hack your network. However, if you have WPS enabled or one of your guests has installed an app that transmits Wi-Fi passwords to the cloud, access may be gained indirectly.
Does the number of connected devices affect internet speed?
Yes, the channel's bandwidth is divided among all active users. If one device starts downloading torrents or watching 4K videos, the speed on other devices will drop. Even in standby mode, devices can still consume bandwidth for updates, creating a background load.