CenturyLink may change or cancel products and services or substitute similar products and services at its sole discretion without notice. All Rights Reserved. Visit the Discover blog homepage. How to tell if someone is using your WiFi July 06, Low-Tech A simple, low-tech way to check if someone is on your WiFi is to look for a flashing green light on your router after unplugging or turning off anything in your home that connects to your WiFi. How to protect your WiFi Securing your home WiFi is the key to keeping unwanted users off your network.
Make the password hard to guess with a mix of letters, numbers and special characters. If there are signs that someone may be using your WiFi again, make it a priority to match up devices on your IP address. We recommend doing this twice a year. You can even set a reminder in your calendar.
Be sure to only share your login information to those who live in your household and people you trust. Article Summary. Method 1. Open a browser. You can use a web browser to log in to the web interface for your wireless router. You can use the web interface to set up and configure your wireless network and check who is connected to your wireless router. Type the IP address of your router in the address bar. This takes you to the web interface for your wireless router.
The IP address for your wireless router is going to be different from one make and model to another. Consult the user's manual or the manufacturer's web page to find the specific IP address for your wireless router. Common router IP addresses include Click it to open it. Look for the IP address to the right of "Default Gateway". Enter your username and password. If you haven't changed the username and password, input the default information.
This can vary depending on the make and model of your router. Consult the user's manual or manufacturer's web page to find the default username and password for your router. Common usernames and passwords include "admin" and "password". Look for a list of devices. You can find a list of connected devices in the web interface for your router. This is going to be different depending on the make and model of your router.
It may be under "Connected devices" or "Attached devices" or something similar. This will show the device name and MAC address for each device connected. If you notice any devices that don't belong, be sure to change your Wi-Fi password. This will force all connected devices to re-enter the new password to reconnect. Method 2. Open your Command Prompt. On Mac, you can do this in the terminal. Click the magnifying glass icon in the upper-right corner and type terminal in the search bar and then click the terminal.
Look at the IP addresses. Another way to know if someone else is on your WiFi is to consult the router. This device has a record that will allow you to find out if, besides you, there is someone else connected to the network at that moment.
To do this you have to enter the management interface of the router and then click on your IP address in the browser bar on the same router. Click "enter" and you will find that there is an address in the browser toolbar. Copy and paste this address in your browser and your router interface opens. It will ask you the user name and password that can be found in the router's manual or on the sticker on the router iself.
Afterwards you can search the history of the devices connected to the WiFi. This information usually appears in the DHCP section or if you see groups associated with the network, a registration will appear. By clicking this option you wll be given all IP addresses that are connected to your router. It is an excellent way to identify devices accessing your network.
What should you do if you identify someone using your WiFi network without your permission? The instructions below are tested using a Linksys Smart Router. Your router may differ slightly and use different terminology.
Just adapt the following instructions to your specific model. Change the password to something that is as difficult as it is practical while still being able to remember it. Mix upper and lower case letters and numbers. If your router allows special characters, use them for good measure. Extra steps you can take to secure your Wi-Fi from intruders includes disabling WiFi protected setup WPS and upgrading the router firmware.
There should be a setting in the wireless part of your router that disables WPS.
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