TheGroundZero

I know this is an old post, but just for future reference. If you don't get an IP in the WinPE phase, you need to inject drivers in your boot image. This is possible from within SCCM. Don't forget to update the Distribution Points. If you don't get an IP after applying the new Windows Image, no suitable drivers were found in the Apply Driver Package step. You can fiddle around a little with the settings in the "Apply Device Drivers" step. Check "Install ALL compatible driver" and "Consider drivers from all categories". Worst case scenario would be injecting the drivers in your Windows 7 image, but this might cause driver issues when you install this image on other devices. If you 'trust' your drivers, you might also want to check "Do unattended installation of unsigned drivers on versions of Windows where this is allowed". Some domain setting might cause the fact you don't get an IP. You can consider making an IP reservation for the device.