Connect to Router: By connecting to the local Area network (LAN) port of the router, you can connect your computer to the router via an Ethernet cable.
Log in to the router interface: Enter the router's IP address (usually 192.168.1.1 or 192.168.0.1) in a Web browser and enter the administrator username and password to log in to the router interface.
Navigate to Wireless Settings: In the router screen, locate the wireless Settings or wireless configuration options.
Turn off the wireless feature: In the wireless Settings options, there is usually an \"Enable\/Disable Wireless\" or similar option. Select Disable or turn off wireless and save your changes.
Disconnect: Wait a few seconds, then disconnect the Ethernet connection from the router.
This will turn off the wireless functionality of the wireless router, making it operate only as a wired router. With wireless disabled, you will no longer be able to connect to the router via Wi-Fi.