How to Detect Unapproved WiFi Usage on Your Network

Are you concerned that someone might be using your WiFi without your knowledge? This is a common concern, especially when you notice unexpected traffic or slow internet speeds. Here’s how you can check your WiFi network to see if someone is unauthorizedly using it:

The Almost Certain Truth

It is almost certain that someone is using your WiFi, especially if they are actively using your phone. Modern smartphones are designed to switch to WiFi for calls if a strong enough WiFi signal is available. This is because these calls do not count towards your phone minutes, making the WiFi an appealing alternative.

Verifying WiFi Usage through Your Router

Checking your router can provide the answers you need:

Login to Your Router: You can check the number of clients connected to your WiFi network. Alternatively, you can view the DHCP settings where you can see the number of people connected along with their device names and IPs. Check Router Logs: Look at your router logs for any usage by non-named devices. Make a list of all your devices’ MAC numbers for comparison to the logs. View Connected Devices: To view all connected devices on your network, log into your gateway using a computer or wireless device that is connected to the network. Follow these steps: Access the Router: Launch an Internet browser. Type the IP address of your router (commonly 192.168.0.1 or 192.168.2.1). Enter Login Credentials: A login screen will display. The default user name is admin, and the password is password. These credentials are case-sensitive. View Attached Devices: Click on Attached Devices to see detailed information about your connected devices. This includes: Status: Shows whether the device is allowed or blocked. Device Name: If known, shows the name of the device. IP Address: Displays the IP address assigned by your router when the device joined the network. This number may change if a device disconnects and re-joins the network. MAC Address: Each device has a unique MAC address, which does not change. Check the product label for this information.

Note: Ensure you refresh the screen to get the latest connected devices with the Refresh button.

Conclusion

If you find unknown devices using your WiFi, it is important to take action. Unauthorized access not only risks your security but can also lead to bandwidth issues and other problems. Consider changing your network password and setting up more secure guest networks for visitors. Regular monitoring of your WiFi network can help ensure your home network remains a secure and reliable resource.