The network printer installation keeps failing. i even installed hp print & scan doctor 4.9 and clicked troubleshoot firewalls and disabled the 1 firewall found (microsoft windows firewall). still the "installing network printer" fails.. Our company has been share the hp 2055d printer from pc to public printing. my computer is running with win 7, can’t connect to network hp 2055d printer and show the “ operation failed with error. "installation failed" - cannot install hp 2600n to print over network this is the usual story - printer works fine, laptop works fine, printer works from elsewhere in the network, blah blah blah. the hp is hooked directly to the network without a print server pc attached to it..