Close icon Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification. Once you set up a new internet router, it's important to change the default password. Westend61/Getty Images To make a new Wi-Fi password for your internet router, you'll need to access the router's settings page using a web browser. Every router is different, but the steps to make a Wi-Fi password are similar across devices. The information you'll need to open your router's settings may be written on the router, or in the instruction manual that came with it.