huwyngr

I can't help with networks but check that link I gave you and see if
fixes it.

For a USB connection the important thing is not to plug the USB cable
into the PC until either the software installation tells you to or you
reach Finish.

It would be a good idea to get the system working over USB first and
then try networking. If you try this make sure you delete any icons for
the printer in Control Panel / Printers and Control Panel / Fax and
Scan (if you have that) and uninstall any software for the printer that
shows up in Control panel / Remove Programs.

Then START / Run / type msconfig in the box and click on OK and look
through the Startup programs and uncheck any that refer to HP.

Then with the printer cable unplugged from the PC reboot the PC.

Then install the software again. Disable any AV or Firewall you have.