If you’re wondering how to connect HP Envy 6400 to WiFi, the process is simple. First, power on your printer and go to the Wireless Setup Wizard from the control panel. Select your home WiFi network from the list and enter the password. Once connected, the wireless light will turn solid blue, confirming a successful connection. To complete the setup, download the HP Smart app on your computer or mobile device, add the printer, and follow the on-screen steps. After this, you’ll be able to print wirelessly from any device connected to the same network.