If you're new to HP printers, then it is good to connect your printer to WiFi. So, here is how to connect HP DeskJet 3755 and 2600 to WiFi: Stepwise Guideline for Wireless Setup. Turn on your printer to get started. Next, long-press and simultaneously hold the "Wireless" and "Cancel" buttons. Start your computer, download the HP Smart App, and install it. At this point, click the "Wireless" button on your printer. Pressing and holding the "Information" and "Wireless" buttons simultaneously requires some waiting. A page labeled "Network Configuration" will print from the printer. The WPS Pin is located at the very top of the printed page. On your Windows 10 PC, input the "WPS Pin" to connect your HP DeskJet 3755 to WiFi. Finally, HP drivers must be loaded on your computer to utilize every feature of the printer.