For the 123.hp.com/setup 7155, all you need is to complete the basic settings on the printer. After all those settings, you can start to make the steps for the wireless setup. Tap on the wireless icon on the printer panel and you will be navigated to the wireless wizard option. Then enter the correct SSID and the WEP to get the network connection to the printer. After the network connection, you will get the notification to a software update. Browse to the hp site from your computer, enter your printer model number and download the compatible driver and install it on the printer.For further steps related to the 123.hp.com/setup 7155 feel free to contact our customer support team@+1-866-219-1890 and resolve the issue or visit us on https://www.123hpcomm.com/123-hp-com-setup-7155/