How to Disconnect Someone Else's Computer from Your Wi-Fi: Step-by-Step Instructions for All Routers

Have you noticed that your internet speed has suddenly dropped and an unfamiliar device has appeared in the list of connected devices? MAC address? Or has your router started to slow down for no apparent reason? Most likely, it's your Wi-Fi networks An unauthorized user has connected—a neighbor, a guest who forgot to log out, or even a hacker exploiting vulnerabilities in an old password. In this article, we'll look at 7 proven methodsHow to disconnect someone else's computer (or any other device) from your Wi-Fi without breaking your network.

It's important to understand: you can't simply "kick" a device off the network—you need access to the router's settings. If you haven't changed the admin panel login and password, they're usually found on a sticker on the back of the device (e.g., 192.168.0.1 or 192.168.1.1). Also check if you are using simplified authorization through apps like Tether (For TP-Link) or ASUS Router - this will speed up the process.

Let us warn you right away: some methods (for example, MAC blocking) don't work on all routers, and changing the password will force you to reconnect all devices, including yours. Choose the method based on your situation—we've ranked them from simplest to most radical.

1. Check the list of connected devices

Before you block something, you need to make sure that it actually exists on your network. foreign deviceMost modern routers display a list of connected devices in real time. Here's how to find it:

• 🔍 TP-Link: General Settings → Wireless → Wireless Statistics or tab DHCP → Client List.
• 🖥️ ASUS: Network Map → Clients (both wired and wireless devices are displayed).
• 🌐 Keenetic: System Monitor → Connected Devices.
• 📡 D-Link: Status → Wireless Network → Clients.

In the list you will see IP addresses, MAC addresses (unique device identifier) ​​and sometimes host names (For example, DESKTOP-ABC123 (for Windows PCs). If the device's name is unfamiliar to you and the MAC address doesn't match any of your other gadgets, it's a "foreigner."

Please note: Some devices (eg. smart light bulbs or IP cameras) may appear under strange names. If in doubt, temporarily unplug them and see if the device disappears from the list.

2. Blocking a device by MAC address

The most reliable way to disable someone else's computer is block its MAC address in the router settings. This method works even if the attacker knows the Wi-Fi password, since blocking occurs at the hardware level.

Instructions for popular router brands:

• 🔧 TP-Link:
  1. Go to Wireless Mode → MAC Filter.
  2. Select Enable filtering and regime Deny stations with MAC addresses from the list access to the network.
  3. Add the MAC address of the stranger to the list and save the settings.

🛡️ ASUS:

1. Open Wireless Network → MAC Filter.
2. Set the switch to position Reject.
3. Enter the MAC address and press Add.

Once the settings are applied, the other computer will be immediately disconnected, and all attempts to connect to your network will be blocked. Important: If an attacker changes their device's MAC address (this can be done programmatically), the blocking will no longer work.

Make sure the MAC address is written correctly (no spaces or dashes)

Enable filtering in your router settings

Reboot your router to apply the changes.

Check if the device has disappeared from the client list-->

3. Change your Wi-Fi password

If MAC blocking does not work or your router does not support this feature, change password — the next step. This is a radical method, as you'll have to reconnect all your devices, but it's guaranteed to disconnect all unauthorized users.

How to change your password:

1. Go to your router control panel (usually at 192.168.0.1 or 192.168.1.1).
2. Search section Wireless network (or Wi-Fi, Wireless).
3. In the field Password (or Key, Passphrase) Enter a new key. We recommend using a combination of 12+ characters with letters, numbers and special characters (for example, K7#pL9!mQ2$v).
4. Save the settings and reboot the router.

After this, all devices (including yours) will be disconnected. You'll need to reconnect them using a new password. The other computer will also lose access, but if the password is weak, it can be hacked again.

Once a month

Once every six months

Only when I notice problems

Never changed-->

4. Using a guest network

If you frequently share Wi-Fi with guests but don't want to risk your main network, set up guest networkIt runs in parallel with the main one, but has a separate password and limited rights (for example, no access to local devices like printers or network drives).

How to enable guest network:

The advantage of a guest network is that even if someone connects to it, they won't be able to access your personal data. And if you spot a suspicious device, just disable the guest network or change her password.

5. Disabling DHCP for a specific IP

A more advanced method is - IP to MAC binding and disabling DHCP for other devices. This will force the router to ignore IP address requests from unknown devices. This method doesn't work on all routers, but it's very effective.

Step-by-step instructions:

1. Find the section in your router settings DHCP (usually in Local area network or LAN).
2. Enable the option Address reservation or IP-MAC binding.
3. Add all to the list your devices with their MAC and desired IP.
4. Mark someone else's MAC address as Locked or exclude it from the range of distributed IPs.

After this, someone else's computer will not be able to obtain an IP address automatically. Even if they enter it manually, internet access will be blocked (if static IP protection is enabled on the router).

What should I do if my router doesn't support IP-MAC binding?

In this case, you can manually narrow the range of DHCP addresses distributed. For example, if you have five devices, set the IP pool from 192.168.0.100 to 192.168.0.105. Then, the other device will either not receive an address or will have to enter it manually (which is unlikely for a casual user).

6. Hiding the network name (SSID)

Hide the name of your Wi-Fi network (SSID) is a controversial, but sometimes effective method. If the network isn't visible in the list of available networks, a random user won't be able to connect to it. However, this won't stop experienced hackers or those who already know the name of your network.

How to hide SSID:

• 🔄 TP-Link/ASUS: Wireless → Wireless Settings → Hide SSID (check the box).
• 📶 D-Link: Wi-Fi → Basic Settings → Hide Hotspot.
• 🖧 Keenetic: Wi-Fi → Network Settings → Hide Network.

Once a network is hidden, its name will no longer appear in the list of available Wi-Fi networks. To connect, you'll need to enter the SSID manually. Disadvantage of the method: You will also have to enter the network name each time on new devices.

7. Updating the router firmware

If your router is old, its firmware may contain vulnerabilities that allow you to bypass passwords or locks. Firmware update closes these "holes" and adds new security features.

How to update firmware:

1. Go to your router control panel.
2. Search section System tools, Service or Firmware file.
3. Click Check for updates (if there is an automatic check) or download the latest version from the manufacturer's website.
4. Download the firmware file and wait for the process to complete (do not turn off the power!).

After the update, all router settings will be reset to factory settings, so write it down in advance:

• Current Wi-Fi and admin panel passwords.
• List of blocked MAC addresses (if any).
• Port settings (if using Port Forwarding).

What to do if nothing helps?

If you've tried all the methods, but someone else's computer still connects to your network, it's possible:

• 🕵️‍♂️ Your router has been hacked. — someone gained access to the admin panel and disabled all protections. In this case, you need to reset the router to factory settings (button Reset on the back panel) and set it up again with a more secure password.
• 📡 WPS vulnerability is exploited — quick connection function using PIN code. Disable WPS in the router settings (section Wi-Fi → WPS or Wireless Mode → WPS).
• 🔌 Connection via cable - if someone else's computer is connected to the router via EthernetBlocking Wi-Fi won't help. Check the physical ports on your router.

In extreme cases it is possible change the router for a model with support WPA3 (For example, ASUS RT-AX88U or TP-Link Archer AX6000) - this security protocol is practically unhackable. Also consider installing VPN on a router for additional traffic protection.

FAQ: Frequently Asked Questions

Is it possible to disable someone else's device without access to the router?

No, to block, you need to access your router settings. If you don't have access (for example, if your router was provided by your ISP), contact your operator's technical support. An alternative option is physically disable Wi-Fi on the router (with a button on the body), but this is a radical measure.

Someone else's computer still connects even after changing the password. What should I do?

The attacker has likely saved your network on their device and is connecting automatically. Try this:

1. Change network name (SSID) - this will force all devices to "forget" the old network.
2. Turn on MAC filtering (if you haven't done so before).
3. Check if someone is connected WPS or Ethernet.

How do I know if someone else's computer is connected to my Wi-Fi?

Signs of an unauthorized connection:

• 📉 A sharp drop in internet speed for no apparent reason.
• 🔄 The router is slow, and the activity indicators are flashing when you are not using the network.
• 📊 Unknown devices appear in the router's client list MAC addresses or device names.
• 💻 Your antivirus is reporting suspicious connections to your local network.

To monitor traffic you can use programs like GlassWire (Windows) or Fing (mobile devices).

Is it legal to disconnect other people's devices from your Wi-Fi?

Yes, you have every right to block any device in your private networkHowever, if we are talking about public hotspot (for example, in a cafe or hotel), disconnecting users independently may be considered a violation of the terms of service. At home, there will be no legal consequences.

Is it possible to track who is connected to my Wi-Fi?

Technically yes, but it requires special knowledge. MAC address devices can be linked to a manufacturer (the first 6 characters indicate the company, for example, 00:1A:79 - This Apple), but it's impossible to identify a specific person without the involvement of law enforcement. If you suspect data theft, report unauthorized access to the police.