Locate the router’s reset button (often a pinhole labeled Reset)
Power on the router
Press and hold the reset button for 10–15 seconds
Release the reset button
Wait 2–5 minutes for the router to reboot and restore default settings
Reconnect to the router (Wi‑Fi name/password may revert to the default on the label)
Log in to the router admin page and reconfigure settings (ISP credentials, Wi‑Fi name/password, security settings)