How to Control Devices Connected to Your Wi-Fi: A Complete Guide

Has your Wi-Fi suddenly slowed down, even though your plan hasn't changed? Or have unknown gadgets appeared in your router settings? In 90% of cases, foreign devicesconnected to your network without your knowledge. Neighbors, random passersby at the door, and sometimes even malware on your own devices—they can all steal traffic, reduce speed and even threaten the security of personal data.

Controlling connected devices is not paranoia, but basic cyber hygieneIn this article, you will learn how to:

• 🔍 Detect all gadgets on your Wi-Fi network (including hidden ones)
• 🛡️ Block unwanted users forever
• ⚙️ Limit the speed for individual devices (so that children don't clog up the internet)
• 📡 Set up notifications about new connections
• 🔄 Automate control using mobile applications

The instructions are suitable for routers TP-Link, ASUS, Keenetic, MikroTik, Zyxel and other popular brands. And if you have provider router (for example, from Rostelecom or Beeline), we will separately analyze the nuances of its settings.

1. How to view a list of connected devices via a router

The most reliable way is to log in router web interfaceThe login address is usually found on a sticker on the back of the device (e.g. 192.168.0.1 or 192.168.1.1). If there is no sticker, try standard combinations:

• 🌐 192.168.0.1 (TP-Link, D-Link, Mercusys)
• 🌐 192.168.1.1 (ASUS, Keenetic, Zyxel)
• 🌐 192.168.8.1 (some Huawei models)
• 🌐 192.168.100.1 (routers from providers)

After entering the address in your browser, a login window will appear. The default login and password are: admin/admin or admin/empty fieldIf it doesn't work, reset the router settings using the button. Reset (hold for 10 seconds).

The further path depends on the model:

What should I do if an unknown device appears in the list? Don't panic: first check if a new gadget in your family has connected to the network (for example, smart watch or wireless speaker). If the device is definitely someone else's, proceed to the next section—we'll discuss how to block it there.

2. How to block unauthorized devices by MAC address

MAC address — is a unique identifier for a network device that cannot be forged without specialized knowledge. MAC blocking is the most reliable method. Permanently disable other people's gadgets from your Wi-Fi, even if they know the password.

Instructions for most routers:

1. Find it in the list of devices MAC address stranger (looks like 00:1A:2B:3C:4D:5E).
2. Go to the section Wireless Mode → MAC Filter (the name may differ).
3. Add the address to the blacklist and save the settings.
4. Reboot your router (System Tools → Restart).

On routers ASUS And Keenetic you can go further and allow connections only to specific MAC addresses (whitelist). This is useful if you have a small number of devices and want to completely eliminate the risk of hacking:

Enable MAC address filtering|

Add addresses of all your devices|

Set the mode to "Allow only specified"|

Save and reboot the router-->

Problem: some devices (especially Android smartphones) can randomize MAC address to protect your privacy. In this case, MAC blocking won't work. The solution is to use IP binding (more on this in the next section).

What to do if the MAC address changes?

Some devices (iPhone, modern Android, Windows 11) use the "MAC Randomization" feature to protect privacy. In this case:

1. Disable randomization in the Wi-Fi settings on your device.

2. Or use IP blocking + IP to MAC binding in the router (DHCP Reservation function).

3. To completely block, change the Wi-Fi password to a more complex one (see section 5).

3. Limit speed and traffic for individual devices

Even if a device on the network is legal, it can download torrents, broadcast 4K video or play online games, which is causing internet lag for other users. The solution is QoS (Quality of Service), or "traffic prioritization."

For example, on routers TP-Link the path is this: Advanced Settings → QoS → QoS SettingsHere you can:

• 📈 Limit the speed for a specific device (for example, up to 5 Mbps).
• 🎮 Prioritize traffic for games or video calls.
• ⏳ Set limits by time (for example, turn off the Internet after 23:00).

On Keenetic similar settings are in Internet → Traffic RulesHere you can create a rule like “If a device with MAC XX:XX:XX consumes >1 GB per hour - limit speed to 1 Mbps."

Important: QoS only works if the router supports this feature. Cheap models (for example, Tenda N300) it may not be there. In this case, only physical blocking or change your password.

4. Mobile applications for monitoring Wi-Fi networks

Don't want to go into your router settings every time? Install one of these apps:

Fing — the most popular solution. It not only displays all connected devices, but also:

• 🔎 Determines manufacturer gadget by MAC address (for example, Apple, Samsung, Xiaomi).
• ⚡ Checks connection speed each device.
• 🛡️ Scans on vulnerabilities (open ports, weak passwords).

How to use:

1. Connect to your Wi-Fi network.
2. Launch Fing and click "Scan".
3. The application will show all devices with IP, MAC and name (if any).
4. Click on the unknown device → “Block” (if the router supports integration).

⚠️ Attention: Mobile apps can show false devices (for example, virtual hosts from Smart TV or game consoles). Always check the data against the router's web interface.

5. How to protect your Wi-Fi from re-hacking

Blocking other people's devices is a half-measure. If the attacker connects again, you'll have to repeat the procedure. once and for all To block access, do the following:

1. Change your Wi-Fi password to complex:

• 🔐 Length not less than 12 characters.
• 🔤 Use letters different registers, numbers and symbols (!@#$%).
• 🚫 Do not use personal information (dates of birth, names, qwerty123).

Example of a strong password: k7#pL9$vR2!mN.

2. Disable WPS (Wi-Fi Protected Setup). This feature simplifies connection, but makes the network vulnerable to brute-force attacks. Path:

• TP-Link: Wireless → Wireless Security → Disable WPS
• ASUS: Wireless Network → WPS → Disable

3. Enable encryption WPA3 (if your router supports it). This is a new security standard that is harder to hack than WPA2You can find the setting in the section Wireless Mode → Authentication Method.

4. Hide the network name (SSID) — a controversial method, but it adds complexity to random connections. Included in Wi-Fi Settings → Hide SSID. Minus: You will have to manually enter the network name when connecting new devices.

⚠️ Attention: If you have provider router (for example, from MTS or Beeline), some settings (such as password changes) may be blocked. In this case:

• 📞 Call your provider's support and ask open access to the settings.
• 🔄 Or buy your router and set it up in mode bridge.

6. Automatic notifications about new devices

To avoid checking the list of connected devices manually, set up notificationsThis can be done:

Method 1: Via a router

Some models (eg Keenetic or ASUS RT-AX88U) support sending notifications to email or Telegram when a new device is connected. Path:

• Keenetic: Notifications → Notification Rules → New Device on the Network
• ASUS: Administration → Notification → Enable Notifications

Method 2: Through third-party services

If your router does not support notifications, use:

• 📧 IFTTT (automation service) + Fing → Configure the trigger “New device on the network → Send email”.
• 🤖 Telegram bot @NetScanBot — scans the network and sends messages to the chat.

Method 3: Using firmware from third-party developers

Advanced users can install alternative firmware (for example, DD-WRT or OpenWRT), which supports enhanced notifications. Risk: Unofficial software may void the warranty and cause unstable operation of the router.

⚠️ Attention: New device notifications they don't block They're blocked automatically. They only notify you about the connection. To block them, you still need to go to the router settings.

7. Common mistakes and how to avoid them

When monitoring devices on a Wi-Fi network, many people make the same mistakes. Here are the most common ones:

Mistake 1: Blocking your devices

Users often get confused MAC addresses and lock their gadgets. To avoid this:

• 📋 Keep a list legal MAC addresses (for example, in notes on your phone).
• 🔍 Before blocking, check the address through Fing or arp command:

arp -a

This command (entered in Windows command line or macOS Terminal) will show all IP and MAC addresses on your local network.

Mistake 2: Using a weak password

Even if you block someone else's device, it may still connect again if the password is weak. Check the strength of your password on the website Kaspersky Password Check (do not enter your real password, only a similar combination!).

Error 3: Ignoring the guest network

Many routers support guest Wi-Fi — a separate network with limited access to local resources. This is convenient for friends or temporary users. Setup:

• TP-Link: Guest Network → Enable → Set Password
• ASUS: Guest Network (2.4GHz/5GHz) → Enable Client Isolation

Error 4: No firmware updates available

Outdated router firmware may contain vulnerabilities exploited by hackers. Update your firmware every 3-6 months:

• System Tools → Firmware Update → Check for Updates

FAQ: Answers to Frequently Asked Questions

Is it possible to see what websites a device is visiting on my network?

Yes, but for this you need:

1. Install firmware with support on the router traffic monitoring (For example, DD-WRT).
2. Or use specialized software like Wireshark (requires skills).

⚠️ Attention: Intercepting traffic without the consent of users may violate privacy laws (e.g. Federal Law No. 152-FZ "On Personal Data" in Russia).

What should I do if someone else's device connects again after being blocked?

It probably is changes the MAC address or connects through another network (for example, 5 GHz instead of 2.4 GHz). Solutions:

• Change Wi-Fi password And network name (SSID).
• Turn it off WPS and turn it on WPA3.
• If the problem persists, contact your provider (there may be a leak on their end).

How do I block a device if my router doesn't have a MAC filter?

Use IP to MAC binding (DHCP Reservation):

1. Find the MAC address of the intruder.
2. In DHCP settings (Local Area Network → DHCP) bind it to a non-existent IP (eg. 192.168.1.250).
3. Add a firewall rule to block this IP.

Alternative: Buy a router that supports filtering (for example, TP-Link Archer C6 for ~2000 ₽).

Is it possible to control Wi-Fi from your phone without apps?

Yes, if the router supports it mobile application from the manufacturer:

• TP-Link → Tether
• ASUS → ASUS Router
• Keenetic → Keenetic NetFriend

These applications have the same functions as the web interface (blocking, QoS, notifications).

Why does the router show unknown devices with the names "Android-XXXX" or "iPhone"?

These could be:

• 📱 Old smartphones, which have not been used for a long time, but remain online.
• 🎮 Game consoles (For example, PlayStation or Nintendo Switch).
• 🔌 Smart devices (lamps Xiaomi, columns Amazon Echo).
• 🖥️ Virtual machines or Docker containers on a PC.

Check if these are your gadgets by disconnecting them from the network one by one.