@rowebil @george1421 Have you ever tried ipxe7156.efi for your Acer System? I have to use this for HP X2’s or MS Surface’s since ipxe.efi will not boot them propperly in UEFI mode.
https://forums.fogproject.org/topic/9005/uefi-pxe-boot-how-to-do-it (don’t wonder i have used ipxe.efi there but this has changed to ipxe7156.efi)
FYI: https://wiki.fogproject.org/wiki/index.php?title=BIOS_and_UEFI_Co-Existence