First, you can open the web browser. Here you enter the web address www.routerlogin.net or IP address192.168.1.1 of your Netgear router. After this, you can enter login details of Netgear router Now you can click on the advanced settings >wireless settings. Here you can easily change the password and create a unique password. Save it. If you need more help click on https://wwwrouterloginnets.com/how-can-you-use-the-security-feature-in-the-netgear-nighthawk-ax4300-router/