How to get Printer online HP? Well, we have an experienced team to get you rid of this problem. The major reason causing the offline error is an incorrect router setup with the printer. You can try to diagnose and troubleshoot the problem by resetting your printer back to network defaults. Sometimes running the wireless setup wizard also solved the problem, all these steps can be performed from the printer control panel. The next step is to visit the HP home website and download HP print and scan doctor, you should run the tool and fix your printer. This is how to get printer online HP. Enjoy the service.