Hello,
I would like to add that we're experiencing the same problem with the HP 8570 and 8470 series laptops as well. What's strange is the network adapter hardware is identical to that found in the 8560/8460 and even the 8540 series and those work flawlessly.
Our ghost boot usb drive was created using the Ghost Solution Suite (v 2.5 aka 11.5.1) Boot Wizard and selecting:
PC-DOS, Network Boot Package, Universal Packet Driver v2.0, and adding -NOIDE -NOUSB to the parameters. Has worked like a charm on all model hardware before the 8570.
Already tried searching for 19913 and tried many of the solutions listed, but they didn't work (some articles were also very old so I was having much hope in them anyway).
Any help would be very much appreciated. Thanks!