Windows PE freezes at splash screen using WIMBOOT

[epvergara]

We currently using ipxe.efi to netboot the windows pe environment through HTTP and for the most part it is working great. However on a few laptop models it sometimes freezes at the splash screen when loading the windows pe environment. It really frustrating as it works sometimes however most of the time it fails on certain models. When I use a usb stick to boot the wim it works everytime.

I am using the most current version of wimboot, the BCD, boot.sdi, and wim are from the Windows 10 ADK (1607). UEFI bios has been updated on clients. When I use a usb stick to boot the wim it works everytime.

Here is the ipxe script i'm using

:windows
echo "Booting from ${host_ip}"
sleep 5
kernel http://${host_ip}/wimboot || read void
initrd http://${host_ip}/winpe/amd64/boot/BCD || read void
initrd http://${host_ip}/winpe/amd64/boot/boot.sdi || read void
initrd http://${host_ip}/winpe/amd64/sources/Boot.wim || read void
boot || read void

Any help on how I should troubleshoot this issue would be great.