How to Check Who Is on My WiFi?
If you want to block WiFi users, software solutions are not needed because your router most likely already comes with blocking capabilities built-in.
First of all, you need to find out what your router’s gateway IP address is and type the address into your browser. Cisco and Linksys routers have a default address of 192.168.1.1, but the address varies from manufacturers to manufacturer. Look at the back of your router and, if it isn’t there, look for it online.
Upon entering your router’s gateway IP address into your browser, you will be taken to the router’s admin interface and prompted to enter the admin username and password. In most cases, both the username and password are “admin”.
Next, use the navigation menu to display a list of all attached devices. You should see a name and MAC address of each connected device. If you spot a device that looks like it shouldn’t be on the list, you’ve most likely spotted a WiFi thief. You can either disconnect the unauthorized device or block the device’s MAC address altogether to prevent the device from connecting to your network in the future.