Had the same issue, reverting to 4.18 kernel solved it.

EDIT:

on debug mode the
ip addr show had network interface visible but without proper address
udhcpc failed to get addy
sorry no lspci was in a hurry

@Quazz said in DHCP release after FOG menu exit:

og.postdownload

Isn’t that launched only after image deployment?

DHCP to DNS dynamic updates are of course enabled.

Hello,

How you can release DHCP lease when FOG boot menu exits?

PXE based lease is just computers MAC address. After W10 1809 starts up it happily accepts the existing lease but without updating hostname in DHCP server to computername.domain and thus DNS records are not set correctly.

Or am I missing something else here?

Ran into same problem with machines having ASUS P8Z77-V motherboard and geforce (GTX 670 ASUS GTX670-DC2-2GD5). The lenovo kernel mentioned by kcasper didn’t fix the problem but older Kernel-2.6.35.7.kitchensink [url]http://sourceforge.net/projects/freeghost/files/Kernels/Kernel-2.6.35.7.kitchensink/[/url] seem to work.