Brother HL-2270DW printer wirelessly, start by ensuring it's powered on and in a ready state. Access the printer's control panel and navigate to the Network menu. Select the WLAN option and enable Wi-Fi. Next, search for available Wi-Fi networks and select yours. Enter the network password if prompted. Once connected, install the printer drivers on your computer. You can either use the CD-ROM that came with the printer or download the drivers from the Brother website.