If you're facing issues with 123.hp.com setup, start by checking your internet connection and ensuring your printer is powered on. Restart your router, computer, and printer to resolve connectivity problems. Clear browser cache or try a different browser if the website isn't loading. Ensure you have downloaded the correct drivers from 123.hp.com setup and install them properly. Disable firewall or antivirus temporarily if installation fails. If the printer isn't detected, reconnect it to WiFi or use a USB cable. For further troubleshooting, you can visit our site or contact our technical expert through live chat.