Clearing your "WiFi history" involves two different steps in 2026: forgetting the networks on your device and clearing the logs on your router. To clear it from your device (iPhone/Mac/Android), go to your Wi-Fi settings, select "Edit" or "Advanced," and "Forget" the specific networks you no longer want to be associated with; this prevents the device from automatically reconnecting. However, to truly erase the "history" of who has been on the network, you must log in to your router’s admin panel (usually by typing 192.168.1.1 into a browser). Once there, look for a section called "System Logs," "Security Logs," or "Device List." Here, you can click "Clear All Logs" to remove the record of IP addresses and MAC addresses that have connected to the hardware. For a total "clean slate," performing a Factory Reset by holding the physical reset button on the back of the router for 30 seconds will wipe all history, though this will also delete your passwords and network name, requiring a full reconfiguration of your home internet.