I've tried loading the drivers into my boot image but for this one particular laptop model (Latitude E6420), I still cannot get an IP address after it reboots after the "Setup is applying system settings" screen.
So PXE boot works fine, it gets an IP, downloads and then applies the WIM file.
Then it reboots and Windows configures, reboots and when it's at the task sequence when Config Mgr client is downloading/installing, I hit F8 and ipconfig shows no IP and going forward there's no IP, so all the next task sequences where I need network access
fails.
I've tried importing drivers into SCCM that were x86 and then I tried x64 (deleting and re-adding drivers between attempts) by importing and then telling it to update DP and then update the boot image.
Then I tried the ConfigMgr Driver Injector tool to export the driver and then I imported that manually, but still, it doesn't seem to work, either! :(