To connect your HP DeskJet 3752 printer to Wi-Fi, first ensure your printer is on and your wireless router is active. Press and hold the Wireless button and the Cancel button on the printer simultaneously for about 3 to 5 seconds until the Power light flashes and the Wireless light begins blinking, indicating the printer is in Wi-Fi setup mode. Then, on your smartphone, tablet, or computer, open the HP Smart app (available for iOS, Android, Windows, and macOS). Add the printer by selecting it in the app, then enter your Wi-Fi network password when prompted. The printer and device will complete the connection setup, after which the wireless light should become steady, confirming the connection[1][2][4].

If your router supports WPS (Wi-Fi Protected Setup), you can use the WPS method instead: after putting the printer into setup mode by holding the Wireless button for 3 seconds, press the WPS button on your router for 3-5 seconds. The printer will connect automatically within two minutes, and the Wireless light will become steady once connected[4].

In some cases, if the HP Smart app setup fails, you can connect directly to the printer’s own temporary network emitted during setup, access its internal settings via a browser using the printer’s IP address, and change the Wi-Fi network manually, though this method is more advanced[3].

Using the official HP Smart app is the recommended and easiest way to connect and manage your HP DeskJet 3752 printer on Wi-Fi[1][2].