How to Check Who's Connected to My Wi-Fi: A Step-by-Step Guide

Have you noticed your internet is slower than usual? Or is your router blinking suspiciously often, even when all your home devices are turned off? Someone else may have connected to your Wi-Fi network—a neighbor, a guest who forgot to disconnect, or even a hacker using your traffic for their own purposes. According to Kaspersky, every fifth user has encountered unauthorized access to their home network at least once.

In this article you will find 7 proven methodsHow to find out who's connected to your Wi-Fi, even if you're not an IT professional. We'll look at how to check the list of devices using router web interface, mobile applications and specialized programs, and we will also learn block other people's gadgets and strengthen network security. All instructions are adapted for popular router models: TP-Link, ASUS, Keenetic, Zyxel and others.

Important: Some methods require access to your router settings. If you've forgotten your admin panel password, first reset it using the button. Reset on the back of the device (hold for 10 seconds).

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

The most reliable way to see all connected devices is to access your router's control panel. This doesn't require any additional software, just a browser on your computer or smartphone.

Instructions for most models:

1. Open your browser and type in the address bar 192.168.0.1 or 192.168.1.1 (If you can’t connect, check the sticker on your router – it contains the correct IP address).
2. Enter your login and password (by default it is often admin/admin or admin/empty field).
3. Find the section with connected devices. Depending on the firmware version, it may be called:
   • 🔹 DHCP Clients List (TP-Link, Mercusys)
   • 🔹 Clients or Devices (Keenetic)
   • 🔹 Network Map or Client List (ASUS)
   • 🔹 Hosts or Active Clients (Zyxel)

In the table you will see a list of all gadgets with the following information:

• 📱 IP addresses (For example, 192.168.0.103)
• 🖥️ MAC addresses (unique device identifier, looks like 00:1A:2B:3C:4D:5E)
• 🔄 Host name (how the device identified itself on the network, for example, iPhone-12-Pro)
• ⚡ Connection type (Wi-Fi or cable)

Note: If your router does not have a client section, update the firmware via Administration → Firmware UpgradeOlder versions of software may not support this feature.

2. Using mobile applications for network monitoring

If accessing your router settings each time is inconvenient, install one of the specialized apps. They scan your network and display all connected devices in a convenient view.

Top 3 apps for Android And iOS:

• 📱 Fing — identifies the device manufacturer by MAC address, displays open ports and vulnerabilities. A free version with basic features is available.
• 🛡️ NetScan — scans the network in a few seconds, saves connection history. Suitable for iPhone.
• 🔍 WiFi Guard — Sends notifications when new devices appear on the network. Runs in the background.

How to use Fing (step by step):

1. Download 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 will appear.
4. Click on any device to see its MAC address, manufacturer, and connection history.

Advantages of mobile applications:

• 🔹 No need to remember the router password.
• 🔹 You can check your network remotely (if your router supports cloud management).
• 🔹 Some applications (eg. Fing) know how to test internet speed and search for vulnerabilities.

⚠️ Attention: Free versions of the apps may display ads or limit the number of scans. For regular monitoring, it's worth purchasing the premium version (costing ~300–500 ₽).

3. MAC address analysis: how to distinguish your device from someone else's

A MAC address is a unique identifier for a network card, assigned to each device at the factory. It can be used to identify the device's manufacturer and even its model.

How to decipher a MAC address:

1. Take the first 6 characters of the MAC address (eg. 00:1A:2B from 00:1A:2B:3C:4D:5E).
2. Enter them in the search bar Google or on the website macvendors.com.
3. You will see the name of the manufacturing company (for example, 00:1A:2B may belong Apple, A 3C:5A:B4 — Google).

Examples of transcription:

• 🔹 B8:27:EB — Raspberry Pi (single-board computer)
• 🔹 78:31:C1 — Apple (iPhone, MacBook, iPad)
• 🔹 5C:51:4F — Intel (network cards in PCs)
• 🔹 00:0A:F7 — Cisco (network equipment)

If a device with a MAC address from a manufacturer you don't know (for example, Xiaomi, although you only have Samsung), this is a reason to be wary.

Is it possible to spoof a MAC address?

Yes, advanced users can change the MAC address of their device using special programs (for example, Technitium MAC Address Changer (for Windows). Therefore, this method does not provide a 100% guarantee, but it helps to filter out most "random" connections.

4. Check traffic: who is consuming your internet?

If a suspicious device appears on the network but you're unsure whether it's active, check its traffic consumption. Many routers display how much data each device is transmitting.

Where to watch:

• 🔹 TP-Link: Bandwidth Control → View Usage
• 🔹 ASUS: Traffic Analyzer → Real-Time
• 🔹 Keenetic: Statistics → Traffic

What should be a warning sign:

• 🔹 The device transmits data at night when everyone is asleep.
• 🔹 Traffic is going to unknown IP addresses (you can check via WHOIS).
• 🔹 Download/upload speed exceeds 100 Mbps (if you don't have such plans).

Example: If an unknown device consumes 5 GB of traffic in an hour, someone is probably downloading torrents or watching 4K videos at your expense.

⚠️ Attention: Some routers reset traffic statistics when rebooted. To avoid this, enable this feature. Save Traffic Statistics (located in the system settings).

5. How to block someone else's device: 3 ways

If you detect a foreign device on your network, you need to disable it. Here are three reliable methods:

Method 1: Blocking by MAC address (whitelist)

The most effective method is to allow connections only to trusted devices.

1. Write down the MAC addresses of all your gadgets (you can find them in the Wi-Fi settings on each device).
2. Find the section in the router panel MAC Filtering or MAC filtering.
3. Select mode "Allow only specified" (Allow).
4. Add the MAC addresses of your devices to the list.
5. Save the settings and reboot the router.

Method 2: Change your Wi-Fi password

If you're too lazy to set up filtering, just change your Wi-Fi password:

1. In the router panel, go to Wireless → Wireless Security.
2. In the field "Password" (Password or Pre-Shared Key) enter a new key (at least 12 characters, with numbers and special characters).
3. Select encryption type WPA2-PSK or WPA3 (don't use outdated WEP!).
4. Save the changes - all devices will be disabled and will be required to enter the new password.

Method 3: Disable DHCP for unknown devices

If someone else's device has already connected, but you don't want to change the password:

1. Find the section in the router panel DHCP → DHCP Reservation.
2. Add only your devices' IP addresses to the reservation list.
3. Disable automatic IP assignment for new clients.

After this, third-party devices will not be able to obtain an IP address and connect to the network.

Make sure your devices are reconnected|Check the client list once a week|Update your router firmware|Disable WPS (vulnerable connection protocol)-->

6. How to Strengthen Wi-Fi Security: 5 Essential Steps

To prevent reconnections, follow these steps:

1. Disable WPS — This protocol is vulnerable to brute-force attacks. Find the option WPS → Disable in the router settings.
2. Change the network name (SSID) - don't use standard names like TP-Link_1234It's better to come up with a neutral name without personal information.
3. Enable guest network — If you have guests, give them access only to a separate network with limited rights.
4. Update your router firmware — Outdated versions contain vulnerabilities. Check for updates every three months.
5. Set up a firewall — in routers ASUS And Keenetic There are built-in firewalls that block suspicious connections.

Additional measures for the paranoid:

• 🔹 Use VPN on a router (For example, OpenVPN) to encrypt all traffic.
• 🔹 Turn on notifications about new devices in the router's mobile app (if such a function is available).
• 🔹 Check periodically router logs for suspicious activity (System Log).

⚠️ Attention: If your router supports WPA3, be sure to enable this protocol instead WPA2It is protected from most modern attacks, including KRACK.

7. What to do if a hacker is already in your network?

If you suspect that your Wi-Fi is being accessed by someone other than just a neighbor (for example, due to strange traffic or attacks on other devices), follow these steps:

1. Turn off the Internet — Unplug the ISP cable from the router or disable WAN in the settings.
2. Check your devices for viruses - use Kaspersky Virus Removal Tool or Dr.Web CureIt!.
3. Reset your router to factory settings - hold down the button Reset 10–15 seconds.
4. Reconfigure your router — set a complex password, disable remote control, enable the firewall.
5. Check your network for vulnerabilities - use Nmap or Angry IP Scanner to scan for open ports.

Signs that your network has been hacked:

• 🔹 The router reboots itself or changes settings.
• 🔹 Unknown rules appear in Port Forwarding.
• 🔹 Traffic goes to suspicious IP addresses (for example, in China or Eastern Europe).
• 🔹 Programs that you didn't install appear on your computers.

If the problem persists after all these steps, contact your provider—there may be a vulnerability on their end (for example, in their equipment or personal account).

FAQ: Frequently Asked Questions about Wi-Fi Security

Is it possible to find out who exactly connected to my Wi-Fi (name, address)?

No, a MAC address or IP address can only identify a device's manufacturer and model. To identify a specific person, you need to report unauthorized access to the police—they can request data from the ISP (if the connection was made through their equipment).

What happens if I block my device by MAC address?

It simply won't connect to Wi-Fi. To fix this, go to your router settings and remove the MAC address from the blacklist or add it to the whitelist (depending on the filtering mode selected).

How to check Wi-Fi for viruses?

The network itself may not be "infected," but viruses may be present on connected devices. Check all devices with antivirus software, update your router firmware, and change your Wi-Fi password. You can also scan your network for open ports using Nmap or Zenmap.

Is it possible to connect to someone else's Wi-Fi legally?

Technically, yes (if you know the password or the network is not protected), but legally it qualifies as unauthorized access to computer information (Article 272 of the Russian Criminal Code). The maximum penalty is up to 7 years' imprisonment (if significant damage was caused). Even if you were "just surfing the internet," the network owner only needs to file a police report.

Why does the router show unknown devices, although I am sure that they do not exist?

Possible reasons:

• 🔹 Smart devices (lamps, sockets, vacuum cleaners) that you forgot.
• 🔹 Neighboring routers in mode Mesh (if you have it too Mesh system).
• 🔹 Devices with dynamically changing MAC addresses (some smartphones Apple And Google use this feature for privacy).
• 🔹 Router error (reboot it).