How to Find Out Who's Using My Wi-Fi: Free Network Checker Software

Have you noticed your internet has slowed down and your data usage is depleting faster than usual? It's possible that unauthorized devices have connected to your Wi-Fi. This not only reduces speed but also creates security risks: attackers can intercept data, infect the network with viruses, or use your IP address for illegal activities.

In this article we will look at how Check who's connected to your Wi-Fi for free, without resorting to paid services. You'll learn about built-in router tools, mobile apps, and PC programs that can help you identify "uninvited guests." We'll also give recommendations on how block other people's devices and protect the network from repeated intrusions.

Important: Some methods require access to router settings or administrator rights on the device. If you're renting or using a corporate network, these actions may violate the terms of use—check them beforehand.

Methods for checking connected devices without programs

Before downloading third-party software, try standard tools. Most modern routers allow you to view a list of connected devices via a web interface or mobile app.

The easiest way:

• 🌐 Open your browser and enter in the address bar 192.168.0.1 or 192.168.1.1 (the exact address is indicated on the router sticker).
• 🔑 Enter your login and password (by default it is often admin/admin or admin/password).
• 📊 Find the section DHCP Clients, Connected Devices or Local area network — there will be a list of all active connections.

If you have a router from a provider (for example, Rostelecom, Beeline, MTS), the interface may differ. In this case:

1. Check the sticker on your router - it indicates the login address (for example, 192.168.0.1 or my.keenetic.net).
2. Use the login details from the sticker (if you haven't changed them).
3. Look for tabs like Devices, Wi-Fi or Net.

⚠️ Warning: If you haven't changed your router's default password, any user connected to the network can access its settings. Be sure to change your login and password. in the section Administration or System Preferences.

Top 5 Free PC Software (Windows 10/11)

If your router's web interface seems complicated or doesn't provide enough information, use specialized utilities. They display not only a list of devices, but also their MAC addresses, IP, manufacturer and even connection history.

We tested popular free programs and compiled a rating based on criteria such as ease of use, functionality, and absence of hidden advertising.

Recommendation: Suitable for beginners Wireless Network Watcher — it doesn't require installation and immediately displays all connected devices. It's best for experienced users. Angry IP Scanner, as it provides more technical details.

Mobile applications for Android and iOS

You can also check the network from your smartphone. Mobile apps are convenient because they are always at hand, and some of them can block other people's devices directly from your phone.

Best free apps:

• 📱 Fing (Android/iOS) — scans the network, identifies device models, and checks open ports. There is a function Intruder Alert to discover new gadgets.
• 🛡️ NetCut (Android) - Not only shows connected devices, but can also disconnect them from the network (requires root rights).
• 🔍 WiFi Guard (Android) - Monitors the network in the background and sends notifications about new connections.
• 📊 Network Analyzer (Android/iOS) - A professional tool with network visualization, ping tests and port scanning.

Important: Apps like NetCut may violate some providers' terms of service. For example, Rostelecom And Beeline prohibit the deliberate disconnection of devices from the network without the owner's consent.

Instructions for Fing (the simplest application):

1. Download and install Fing from Google Play or App Store.
2. Open the app and tap Scan.
3. Wait for the scan to complete - a list of all devices will appear with the indication IP, MAC and the manufacturer.
4. Click on an unknown device to see more information (such as open ports).

How to identify "your" and "foreign" devices on the network

Even if you see a list of connected gadgets, it's not always clear which ones are yours and which are not. Here's how to tell them apart:

1. By device name

• 📱 Smartphones often display as iPhone-12, Samsung-Galaxy-S21 or Xiaomi-Redmi-Note-10.
• 💻 Laptops can have names like Lenovo-IdeaPad or MacBook-Pro.
• 🖥️ Desktop PCs usually show up as DESKTOP-ABC123 (Windows) or ubuntu-pc (Linux).
• 🎮 Game consoles: PS5-1234, Xbox-Series-X, Nintendo-Switch.

2. By MAC address

Each device has a unique MAC address (For example, 00:1A:2B:3C:4D:5E). The first 6 characters indicate the manufacturer:

• 🍎 00:17:F2, 3C:07:54 — Apple.
• 🤖 78:59:68, B4:5D:50 — Samsung.
• 🦊 D8:B3:77, 28:CF:DA — Xiaomi.
• 🖥️ 3C:D9:2B, 00:9A:CD — Hewlett-Packard.

3. By IP address

If the device's IP address starts with 192.168.0. or 192.168.1., this is a local connection. But some providers (for example, Dom.ru) use other ranges, for example 10.0.0..

How do I find out my device's MAC address?

On Windows: open command prompt (Win + R → cmd) and enter ipconfig /all. Look for the line Physical Address.

On Android: go to Settings → About phone → General information → Wi-Fi MAC address.

On iOS: Settings → General → About → Wi-Fi Address.

On MacOS: open Terminal and enter networksetup -listallhardwareports.

If you find an unknown device but are not sure if it is yours, try:

1. Disconnect all your gadgets from Wi-Fi.
2. Reboot the router.
3. Rescan the network - if the device remains, it is definitely a "guest".

How to block someone else's device on a router

Discovered a strange device? Don't rush to change your Wi-Fi password—you can first block just that device by MAC addressThis is convenient if smart devices are connected to the network (for example, Xiaomi Mi Home or Amazon Echo), which are difficult to reconfigure.

Instructions for most routers:

1. Go to the router's web interface (see the first section of the article).
2. Find the section MAC Filter, MAC address filter or Access control.
3. Add MAC address blacklist other people's devices (Deny).
4. Save the settings and reboot the router.

For routers TP-Link:

Advanced → Security → MAC Filtering → Add New → Enter MAC → Save

For Asus:

Wireless Network → MAC Filter → Enable Filter → Add MAC → Apply

⚠️ Please note: Some smart devices (eg. Roborock or Yeelight) may use random MAC addresses to connect. In this case, MAC blocking won't work—you'll have to change your Wi-Fi password.

Additional security measures for Wi-Fi

Even if you've blocked all unauthorized devices, it doesn't guarantee complete protection. Here's what else you can do:

• 🔒 Change your Wi-Fi password complex (at least 12 characters, with numbers and special characters). Do not use birth dates or simple words like qwerty123.
• 🔄 Update your router firmware — Older versions often contain vulnerabilities. Check for updates in the section Administration or System tools.
• 🛡️ Enable WPA3 (if supported). This is the most secure encryption protocol available today. If not, use WPA2-PSK (AES).
• 📵 Disable WPS - This feature simplifies the connection, but makes the network vulnerable to hacking.
• 👤 Change your router login and password (don't leave the default ones admin/admin).
• 🌐 Create a guest network For friends, it is isolated from the main network and does not provide access to other devices.

For routers Keenetic And Zyxel there is an additional function Bandwidth control (Bandwidth Control). It allows you to limit the speed for individual devices, even if you can't block them.

Example of setting the speed limit on TP-Link:

Advanced → QoS → Settings → Add Rule → Specify MAC address → Set limit (e.g. 1 Mbps)

What to do if nothing helps

If third-party devices continue to appear on the network even after changing the password and blocking by MAC, it is possible:

• 🕵️ Someone you know deliberately hacks the network (for example, neighbors or previous tenants).
• 📡 Your router vulnerable to attack due to outdated firmware or weak password.
• 🏢 Do you live in apartment building, where the Wi-Fi signal penetrates into neighboring apartments.

In this case:

1. Change the network name (SSID) — Sometimes people connect by mistake if their neighbors have a similar Wi-Fi name.
2. Hide the network (Disable SSID broadcasting) - this does not provide 100% protection, but will reduce the number of accidental connections. Wi-Fi Settings → Hide SSID → Enable.
3. Use a VPN on your router — this encrypts all traffic and makes data interception virtually impossible. VPN routers support it. Asus, Keenetic and some models TP-Link.
4. Buy a new router - If your model is older than 5 years, it may not support modern security protocols (WPA3, 802.11ax).

If the problem is the signal that the neighbor is receiving, try:

• 📶 Reduce the transmission power in the router settings (section Wireless → Transmit Power).
• 🔄 Change the Wi-Fi channel to a less busy one (use the app WiFi Analyzer for analysis).
• 🛡️ Place the router away from external walls.

FAQ: Frequently asked questions about Wi-Fi testing

Is it possible to find out who is connected to my Wi-Fi without using any software?

Yes, through the router's web interface. Go to this address 192.168.0.1 or 192.168.1.1, enter your login/password and find the section with the list of devices (for example, DHCP Clients or Connected Devices).

How do I block a device if I don't have access to the router settings?

If you can't access your router (for example, it belongs to your ISP), the only way is to change your Wi-Fi password via the provider's mobile application (at Rostelecom This Personal account, at Beeline — My Beeline). You can also try apps like NetCut (requires root access on Android).

Can my neighbor connect to my Wi-Fi if I hide the SSID?

Yes. Hiding the network name (SSID) does not protect against connections—an experienced user can connect manually if they know the network name and password. This only reduces the number of accidental connections.

What should I do if an unknown gadget named "Android" or "iPhone" appears in the list of devices?

First, check if a guest (friend or relative) has connected to your network. If not:

1. Take a look MAC address devices - the manufacturer can be identified by the first characters.
2. Block it in the router settings (section MAC Filter).
3. Change your Wi-Fi password to a more complex one.

If the device keeps showing up, someone may be deliberately hacking your network.

Which routers are the most secure against hacking?

The most reliable models (as of 2026):

• Asus RT-AX88U - support WPA3, built-in antivirus AiProtection.
• Netgear Nighthawk RAXE500 — hardware encryption, protection against DDoS attacks.
• TP-Link Archer AX6000 - regular firmware updates, isolated guest network.
• Keenetic Ultra — VPN support at the router level, two-factor authentication.

Important: Even the most secure router is vulnerable if you use a weak password or don't update the firmware.