@kbell I only see that problem when i use incorrect ipxe file, uefi/legacy independent. the pxe file must match with nic drivers, and firmware type, (.efi for efi systems), (.pxe, .kpxe, .kkpxe for legacy systems), and not all ipxe files have all nic drivers, some realtek cards not works with undionly.kkpxe and you need to use realtek.kpxe, same on uefi i have nics that require snp.efi instead of ipxe.efi.