Allegedly, on or about 20 June 2014, CLOSE Dave sent:
I did say that the same identical kickstart file worked properly on several other identical servers. And I truly mean "identical".
That still doesn't equate to being error free... If you've got one failure out of several identical machines, it may be some hardware quirk that causes the failure, or causes the others to work.
I'd check they all have the identical BIOS, too.