Hi, also i tried with Dell E7450 and i have same issue .
i think the problem is not the surface Pro but the configuration of my PXE Rep or my image .!!!???
my PXE Rep is VM and i add this :
i use Provisioning UEFI PXE Boot devices using Bare Metal Server option, i have create task and deploy Win10 select Bios and it work ,but when i select
Onboard NIC (IPV4) its stuck on "start PXE over IPv4"
Any help would be appreciated.