How to Check How Many Devices Are Connected to Your Wi-Fi: All the Methods

Have you noticed your internet has slowed down, and pages are taking longer to load? Perhaps unauthorized devices have connected to your Wi-Fi network—neighbors, guests who forgot to disconnect, or even hackers using your data. Find out the number of connected users There are several ways to connect to Wi-Fi: through the router's web interface, mobile apps, or specialized software. In this article, we'll cover all the current methods for different hardware models and operating systems.

It's important not only to identify "unnecessary" gadgets, but also to understand how they affect your connection speed. For example, budget routers (like TP-Link TL-WR840N or D-Link DIR-300) can “slow down” even with 10–15 simultaneously active devices, while flagship models (for example, ASUS RT-AX88U or Keenetic Ultra) handle 50+ connections without loss. Checking the client list will help identify not only "parasites" but also old devices that haven't been used for a while but are occupying IP addresses on the network.

If you've never accessed your router's settings or don't know its IP address, don't worry. We'll explain every step in detail, including Finding a gateway address, control panel authorization, and analysis of the list of connected devices. For those who prefer mobile solutions, we'll provide an overview of apps that scan the network directly from a smartphone.

1. Checking via the router's web interface

The most reliable way is to log into your router's administrative panel. You don't need to install any additional software: just a browser and your login information (usually found on a sticker on the router). Let's look at the process using popular brands as examples.

Find first Your router's IP addressThis can be done:

• 🖥️ On Windows: open Command line (Win + R → enter cmd → Enter) and execute the command

  ipconfig

  The address you are looking for will be in the line Main gateway (For example, 192.168.0.1 or 192.168.1.1).
• 📱 On Android: go to Settings → Wi-Fi → [your network] → AdvancedThe gateway address is specified in the section IP configuration.
• 🍎 On macOS/iOS: V System Preferences → Network → Advanced → TCP/IP look at the line Router.

Now enter the found IP address into the browser's address bar. An authorization window will open where you need to specify login and password (by default often admin/admin or admin/empty). If the data is not suitable, try resetting the router using the button Reset (hold for 10-15 seconds).

Instructions for popular brands

⚠️ Attention: If in the list of devices you see unknown MAC addresses with names like android-123456 or unknown, this could be a sign of a hack. Change your Wi-Fi password immediately (in the section Wireless Network → Security) and enable MAC address filtering.

2. Using mobile applications

If accessing your router's settings is inconvenient, you can use smartphone apps. They scan your local network and display all connected devices, including those hidden in the web interface. Let's look at the top solutions for Android And iOS.

Advantages of mobile applications:

• 📱 Convenience: No need to remember the router's IP address or password.
• 🔍 Additional information: Many programs determine the manufacturer of the device by the MAC address (for example, Apple, Samsung, Xiaomi).
• 🛡️ Security: Some utilities check the network for vulnerabilities (such as weak passwords or open ports).

The best apps for analyzing Wi-Fi networks

Example of working with Fing:

1. Install the app from App Store or Google Play.
2. Connect to your Wi-Fi network.
3. Click Scan — after 10–20 seconds, a list of devices with IP, MAC addresses, and names will appear.
4. Click on an unknown device to see details: manufacturer, time of first detection, and ports used.

Check your MAC address using a search engine (for example, on the MAC Vendors website)

Try disabling it through your router.

Change your Wi-Fi password to a more complex one (at least 12 characters)

Enable MAC filtering-->

⚠️ Note: Some applications (eg. Fing) may show devices from neighboring networks if they are using the same Wi-Fi channel. To avoid confusion, pay attention to IP addresses: they must belong to your subnet (for example, 192.168.1.x).

3. Checking via the command line (Windows, macOS, Linux)

For experienced users, there's a way to check without third-party programs—using the command line. This method works on all operating systems and doesn't require software installation. We'll cover the commands for Windows, macOS And Linux.

On Windows:

1. Open Command line (Win + R → cmd → Enter).
2. Enter the command to view the ARP table (list of IP and MAC addresses):

   arp -a

3. To see only active connections, first ping your entire network range. For example, if your router has the address 192.168.1.1, execute:

   for /L %i in (1,1,254) do ping -n 1 192.168.1.%i

   Then re-enter arp -a.

On macOS/Linux:

1. Open Terminal.
2. Enter the command to scan the network (replace 192.168.1 to your subnet):

   nmap -sn 192.168.1.0/24

   If nmap not installed, install it via brew install nmap (macOS) or sudo apt install nmap (Linux).

3. To view the ARP table use:

   arp -n

The result will look something like this:

? (192.168.1.5) at 00:1a:2b:3c:4d:5e [ether] on en0
? (192.168.1.7) at (incomplete) on en0
? (192.168.1.10) at 5c:f9:dd:67:89:ab [ether] on en0

Here 00:1a:2b:3c:4d:5e And 5c:f9:dd:67:89:ab — MAC addresses of connected devices Address (incomplete) means that the device is not responding to requests.

4. Viewing with WireShark (for advanced users)

WireShark — is a powerful network traffic analyzer that allows you to not only see all connected devices but also analyze their activity. The program is free and available for Windows, macOS And LinuxHowever, using it requires basic knowledge of network protocols.

How to use WireShark:

1. Download and install the program from official website.
2. Launch WireShark and select the network interface (Wi-Fi adapter).
3. Click Startto start capturing packets.
4. Enter in the filter wlan.addr == [your_router_MAC]to see traffic from your network only.
5. In the list of packages, pay attention to the column Source — there will be MAC addresses of devices sending data.

Advantages WireShark:

• 🔎 Sees all devices, even those that do not respond to ping.
• 📊 Shows traffic type (HTTP, DNS, ARP, etc.), which helps to identify suspicious activity.
• 🛠️ You can set up notifications about new connections.

⚠️ Attention: WireShark captivates all network traffic, including potentially sensitive data (passwords, cookies). Do not use the program on public networks and always close it after analysis.

How to find out the manufacturer of a device by MAC address?

The first 6 characters of the MAC address (eg. 00:1A:2B) are called OUI (Organizationally Unique Identifier) ​​and are assigned to manufacturers. Check them on sites like MAC Vendors or Arul John. For example, 3C:5A:B4 belongs Google, A 78:31:C1 — Apple.

5. Checking via the router's proprietary software

Many router manufacturers offer desktop utilities for network management. They are often more convenient than web interfaces and offer advanced monitoring features. Let's look at the most popular programs.

Review of proprietary utilities

Example of working with ASUS Router App:

1. Download the program from official website.
2. Connect to the router's network.
3. In the main menu, select Clients — a list of devices will open with the option to sort by name, IP, or MAC address.
4. Tap on an unknown device to block it or limit its speed.

⚠️ Warning: The proprietary software may conflict with antivirus or firewall software. If the software doesn't detect the router, temporarily disable the protection or add the utility to the exceptions list.

6. How to block unauthorized devices

If you find unknown devices on your network, you need to turn off and prevent reconnection. Let's look at effective protection methods.

Blocking methods

• 🔒 Changing your Wi-Fi password: The easiest method. Go to your router settings (Wireless Network → Security) and set a new password (we recommend WPA3-Personal with a length of at least 12 characters).
• 🚫 MAC address filtering: Allow connections only to trusted devices. Find it in your router settings. MAC address filter and add your gadgets' addresses to the whitelist.
• 🌐 Guest networkCreate a separate network for guests with limited access to local resources. This will protect your main network from outsiders.
• 🔄 Firmware update: Outdated router software may contain vulnerabilities. Check for updates in the section System → Firmware Update.

Example of setting up MAC filtering on TP-Link:

1. Go to Advanced Settings → Wireless Mode → MAC Filter.
2. Select mode Allow (instead of Ban).
3. Add the MAC addresses of your devices (they can be found in the smartphone/PC settings or in the router client list).
4. Save the settings and reboot the router.

7. Common mistakes and their solutions

Users often encounter problems when checking connected devices. Let's look at common errors and how to fix them.

Problems and solutions

If after blocking an unknown device it continues to appear on the network, it may mean that your Wi-Fi has been hacked using a password cracking program (for example, Aircrack-ng). In this case, immediately change your password to a more complex one and enable encryption. WPA3 and turn off the function WPS (it is vulnerable to brute force attacks).

FAQ: Answers to Frequently Asked Questions

Is it possible to find out which websites connected devices visit?

Yes, but you need a router with this function traffic monitoring (For example, ASUS AiProtection or Keenetic Security) or installing specialized software like OpenDNSStandard home routers don't store browsing history, but they can display active connections in real time.

Why are there duplicate MAC addresses in the device list?

This may be due to:

• 🔄 Routing: Some devices (such as Wi-Fi repeaters) duplicate MAC addresses.
• 📱 Virtual networks: smartphones with the function Wi-Fi Direct or Hotspot can create additional interfaces.
• 🖥️ Virtual machines: Software like VirtualBox or VMware emulates network adapters.

To clear up any confusion, disable unnecessary network interfaces on your devices.

How do I know how many devices my router can handle?

The maximum number of connections depends on:

• 📶 Router models: budget (for example, TP-Link TL-WR740N) - up to 10-15 devices; flagship (for example, ASUS RT-AX86U) — up to 100+.
• 🔄 Connection type: devices in standby mode load the network less than active ones (for example, streaming 4K video).
• 📡 Wi-Fi range: net 5 GHz usually more stable with a large number of clients than 2.4 GHz.

Check your model's specifications on the manufacturer's website or test the load using LAN Speed Test.

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

The exact location cannot be determined, but the distance to the device can be roughly estimated by signal level (RSSI). To do this:

1. Use apps like WiFi Analyzer (Android) or NetSpot (macOS/Windows).
2. Compare the signal level (dBm) from an unknown device with a signal from your gadgets.
3. The closer the value is to 0 dBm, the closer the device is to the router. For example, -30 dBm - near, -70 dBm - in another room or with neighbors.

For accurate determination, professional tools are needed (for example, Wi-Fi triangulation), which are not available in everyday life.

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

Possible causes and solutions:

• 🔌 DHCP is disabled: If your network uses static IP addresses, your router may not display devices. Enable DHCP in the settings (Local Network → DHCP Server).
• 🔄 Outdated firmware: Update your router software to the latest version.
• 🛠️ Hardware failure: If your router is overheating or shutting down intermittently, check it for defects.

If the problem persists, try alternative methods (eg. WireShark or mobile applications).