I'm currently having a weird issue where I can PXE boot into the system with no issues. I can login and select the image I want to use (we currently have 3) and the install begins. But on all of them at around or just over the 1/2 mark the PC reboots. Once it is done the windows image is corrupted and it goes into an endless repair loop. The only thing that has changed that I am aware of is going from SP version 517 to 556, prior to that it was working with no issues.