Are you looking forward to set-up your HP printer over the wireless connection mode? If yes, then firstly you need to visit the given site link 123.hp.com/setup and then just need to follow the onscreen prompts. Note the router’s Network Name and Network Key. Open the printer’s menu and reach to the wireless connection settings, i.e. WLAN Settings option in the printer’s menu. Mention the Network Name and Network Key in the designated columns and then click on the submit button. The printer will get automatically connected to the host server and you need to wait until it gets prompted. Once after it gets done, reboot the printer and then give a test print from it. For expert and professional help, contact with the customer support team of HP printers.