How to Check How Many Devices Are Connected to Your Wi-Fi: A Complete Guide

Have you noticed your internet has become slower and pages are taking longer to load? Perhaps unauthorized devices—neighbors, guests, or even hackers—have connected to your Wi-Fi. The average home network is designed for 10-15 active gadgets, but exceeding this limit can reduce speed by 2-3 times. Checking the number of connected devices not only helps identify unnecessary devices but also optimizes router performance.

In this article you will find 5 proven methodsHow to count devices on your Wi-Fi network—from viewing via a mobile app to analyzing traffic using specialized software. We'll cover instructions for popular router brands (TP-Link, ASUS, Keenetic, MikroTik), as well as universal methods that work on any equipment. We will pay special attention hidden connections, which are not displayed in the standard router list, but consume your traffic.

Why is it important to control the number of connected devices?

Every device on the network not only puts additional strain on the router but also poses a potential security threat. Here are the key reasons why you should regularly check your list of connected devices:

• 📉 Speed ​​drop: Every new device eats up some of the bandwidth. For example, 4K streaming on TV it can take up to 25 Mbps, and the online game is up to 10 MbpsIf there are 20+ devices connected to the network, even with the tariff 100 Mbps there will be lags.
• 🔒 Data leak: Third-party devices can intercept your traffic (for example, logins from social networks or banking applications) if the network is not protected WPA3.
• 💸 Traffic overuse: This is especially true for plans with a limit. One "extra" device downloading torrents can eat up 50+ GB overnight.
• 🛠️ Router overheating: Many budget models (D-Link DIR-300, Tenda N301) are not designed for more than 10-12 simultaneously active connections. When this limit is exceeded, they begin to slow down or disconnect.

According to the study Kaspersky Lab (2023), in 30% At least one unauthorized connection was detected on home networks. Most often, these are neighbors' devices that connected by mistake (for example, to a network with a similar name) or intentionally—via vulnerabilities in old security protocols (WEP, WPA).

⚠️ Attention: If you are using a router from a provider (for example, Rostelecom or Beeline), some admin panel functions may be blocked. In this case, please contact support or request an unblocking request through your personal account.

Method 1: Checking via the router's web interface (universal method)

The most reliable way is to access your router settings through a browser. This method works on any model, regardless of brand. You only need a computer or phone connected to the same network.

Instructions:

1. Find out Router IP address. Usually it is 192.168.0.1 or 192.168.1.1You can check it via the command line:

   ipconfig (for Windows)
   ifconfig (for macOS/Linux)

   Look for the line Default Gateway.

2. Enter the IP into the address bar of your browser (e.g. http://192.168.0.1).
3. Enter your login and password. By default, this is often admin/admin or admin/password. For Keenetic The login may be missing, but the password is indicated on the sticker.
4. Find the section with the list of devices. Paths for popular brands:
   • TP-Link: Basic → DHCP → DHCP Clients List
   • ASUS: LAN → DHCP Server → Client List
   • MikroTik: IP → DHCP Server → Leases
   • Zyxel Keenetic: Home Network → Devices

In the list you will see:

If there are unknown devices in the list, don't rush to block them. Perhaps this is:

• 📱 Smart speakers (Yandex Station, Amazon Echo)
• 💡 Smart light bulbs or sockets (Xiaomi Mi Home, TP-Link Tapo)
• 🖥️ Virtual machines or Docker containers on your PC

Compare MAC address with manufacturer table (first 3 bytes)

Check if a guest has connected to the network (for example, via a QR code)

Temporarily disconnect the device from the network and see if it disappears from the list.

Change your Wi-Fi password if you suspect hacking-->

Method 2: Mobile apps for network analysis

If accessing your router settings is inconvenient, you can use dedicated smartphone apps. They scan your network and display all connected devices, including hidden ones. The best options are:

• 📱 Fing (Android/iOS) — identifies the device manufacturer by MAC address, shows open ports.
• 📱 NetScan (Android) - scans the network for 5-10 seconds, saves the scanning history.
• 📱 WiFi Guard (iOS) - Sends notifications when new devices appear.

Example of working with Fing:

1. Connect your phone to your Wi-Fi.
2. Launch the app and click Scan.
3. Through 10-20 seconds You will see a list of devices indicating:
   • IP and MAC addresses;
   • manufacturer (based on OUI);
   • status (online/offline).

Click on an unknown device to see more information (such as open ports).

The advantage of mobile apps is that they show all devices on the network, even those that aren't displayed in the router's web interface (for example, devices with a static IP). However, they also have their drawbacks:

• ❌ The manufacturer is not always correctly identified by MAC (especially for Chinese devices).
• ❌ Devices may not be visible in guest network (if it is separated from the main one).

Via the router's web interface|Mobile app|Command line|I haven't tested it yet|Another method-->

Method 3: Command Line (for advanced users)

If you prefer to work without a graphical interface, you can use the command line. Windows or terminal macOS/LinuxThis method is suitable for a quick check, but requires knowledge of basic network protocols.

For Windows:

1. Open Command Prompt (Win + R → enter cmd).
2. Enter the command:

   arp -a

   You will see an ARP (Address Resolution Protocol) table with the IP and MAC addresses of all devices your PC has communicated with.

3. To filter only active devices on your network, use:

   arp -a | findstr "192.168"

   (replace 192.168 to the beginning of your network's IP).

For macOS/Linux:

1. Open the terminal.
2. Enter:

   nmap -sn 192.168.0.0/24

   (replace 192.168.0.0/24 to your subnet).

3. Through 10-30 seconds You will receive a list of all responding devices with MAC addresses and manufacturers.

To find out the manufacturer by MAC address, use the first half of the address (for example, 00:1A:2B) and check it in the database MAC Vendors. For example, B8:27:EB - This Raspberry Pi, A 78:31:C1 — Apple.

⚠️ Attention: Teams nmap And arp Only devices that have recently exchanged packets with your PC are shown. If a device is "sleeping" (for example, a smartphone in power-saving mode), it may not appear in the list.

arp -a > wifi_devices.txt (Windows) or nmap -sn 192.168.0.0/24 > wifi_scan.txt (macOS/Linux)-->

Method 4: Checking through your provider's personal account

Some internet service providers (eg. Rostelecom, MTS, Beeline) provide information about connected devices in your personal account. This is convenient if you:

• 🔄 The router is rented from a provider (for example, Sagemcom or Sercomm).
• 📡 Connection by technology GPON (optical terminal).
• 📱 Mobile Internet with Wi-Fi distribution (for example, MTS Connect).

Instructions for Rostelecom:

1. Go to the website lk.rt.ru and log in.
2. Select a section My Services → Internet.
3. Find the tab Router management or Wi-Fi network.
4. In the block Connected devices You will see a list of gadgets with the connection time indicated.

U MTS And Beeline A similar feature is available in the mobile app. For example, in My MTS need to:

1. Open the app and select your tariff.
2. Go to Wi-Fi Management.
3. Click List of devices.

The advantage of this method is You don't need to know the router's IP address or the admin panel password.However, there are also limitations:

• ❌ Your provider may not show all devices (for example, those connected via cable).
• ❌ Data is updated with a delay (up to 5-10 minutes).
• ❌ No information about MAC addresses (only device names).

⚠️ Note: If you don't see a device section in your account, that doesn't mean there aren't any devices. Your router may not support this feature. In this case, use the other methods in this article.

Method 5: Specialized PC programs

Desktop programs can be used for in-depth network analysis. They are suitable if you need:

• 🔍 Monitor traffic of each device in real time.
• 📊 Build network load graphs.
• 🚫 Block suspicious connections.

Top 3 programs:

Example of working with SoftPerfect WiFi Guard:

1. Download and install the program from official website.
2. Run a network scan (button Scan).
3. The program will show all devices and mark unknown ones in red.
4. You can add your gadgets to white listso that next time the program will notify you only about new connections.

Wireshark - a more complex tool, but it allows you to see, What data exactly is the unknown device transmitting?For example, if someone is downloading torrents through your Wi-Fi, you will notice it by the large number of UDP packets at the ports 6881-6889.

How to set up a filter in Wireshark to find suspicious devices

1. Start packet capture.

2. In the filter field, enter wlan.addr == 00:1A:2B:3C:4D:5E (replace with the MAC address of the suspicious device).

3. See what protocols it uses (DNS, HTTP, BitTorrent, etc.).

4. If the traffic is suspicious (for example, connections to unfamiliar IPs), block the device in the router settings.

What to do if an unknown device is found

Found a gadget online that doesn't belong to you? Don't panic—first, make sure it's not a false alarm. Here's a step-by-step guide:

1. Check the MAC address:

   The first ones 3 bytes (For example, 00:1A:2B) indicate the manufacturer. Compare with the base MAC Vendors. If this Apple, Samsung or Xiaomi, perhaps this is your household's device.

2. Turn off the Internet:

   In the router settings, find the unknown device and click Block or DisconnectSee if neighbors or guests start complaining about the lack of network connection.

3. Change your Wi-Fi password:

   Use a complex password (at least 12 characters) with numbers, letters, and special characters. Example: WiFi_7#kL9!pQ2.

4. Enable MAC filtering:

   In the router settings (Wireless → MAC Filter) Add only your own devices to the whitelist. Cons: You'll have to manually add each new device.

5. Update your router firmware:

   Outdated software versions contain vulnerabilities that hackers exploit. Updating takes time. 2-5 minutes and solves most security problems.

If an unknown device reappears after changing the password, it could be:

• 🤖 Botnet (a network of infected devices used for DDoS attacks).
• 🕵️‍♂️ Targeted attack (for example, through a vulnerability WPS).
• 📡 A recurring router bug (for example, TP-Link Archer C6 sometimes duplicates devices in the list).

⚠️ Warning: If you suspect hacking, do not use banking apps or social networks Use this Wi-Fi connection until the problem is resolved. Connect to mobile data or another secure source.

FAQ: Frequently asked questions about connected devices

Is it possible to see devices connected to the guest network?

Yes, but not in all routers. ASUS And Keenetic The guest network is displayed separately in the web interface. TP-Link Her devices may not appear in the main list. Use mobile apps like Fingto scan both networks.

Why are there fewer devices in the router list than the program shows?

The router displays only devices that have received an IP address. DHCPIf the gadget has a static IP or is connected via Ethernet, it may not be included in the list. Programs like Wireshark or nmap show all active hosts on the network, regardless of the connection method.

How to block a device permanently?

The most reliable way is MAC address filtering:

1. Go to your router settings (Wireless → MAC Filter).
2. Add the MAC address of the unknown device to blacklist.
3. Save the settings and reboot the router.

An alternative is to change the Wi-Fi password and disable it. WPS.

Is it possible to find out which specific app an unknown device is using?

Yes, with the help of Wireshark or GlassWire. IN Wireshark Apply a filter by the device's IP or MAC address, and then analyze the protocols:

• DNS - what sites do you visit;
• HTTP/HTTPS - what pages it opens;
• UDP at the ports 6881-6889 — torrents;
• QUIC — traffic Google or YouTube.

For a simplified analysis, this is suitable GlassWire - it shows traffic by applications (if the device does not encrypt data).

What is the maximum number of devices that can be connected to Wi-Fi?

The theoretical limit is 254 devices (due to protocol peculiarities IPv4). However, in practice:

• Budget routers (TP-Link TL-WR841N, D-Link DIR-615) work stably with 10-15 devices.
• Middle class (ASUS RT-AX55, Keenetic Hero) can withstand 30-50 connections.
• Professional models (MikroTik RB4011, Ubiquiti UniFi) cope with 100+ clients.

When the limit is exceeded, the router begins to "lose" packets, and the speed drops for everyone.