"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. The "Full" Hewlett-Packard installation package consistently refused to install the printer. Which was strange, since it had been installed before! And worked before! Symptoms were that you would run the install, and after a few seconds of "Adding Network Port", it would say "Installation failed", and give you some bullshit instructions for fixing the issue. Running the installation package from local drives vs. network drives made no difference. Uninstalling and reinstalling the HP software made no difference. I suspected that Windows 7 x64 was having trouble adding the virtual TCP/IP port. I did some research and found a registry hack that purported to solve the issue. I removed 5 port, four of which were "_1", "_2...