On Tue, Feb 19, 2019 at 12:12:45PM +0100, Patrick Bégou wrote: ...
Realy strange as I boot and autoinstall many other PC from these server. I also notice that network is set to 100MbFD even if I have Gigabit switch. May be something related to the e1000 driver provided at boot time.
I would try to use the 7.6 vmlinuz and initrd.img instead of the 7.4 versions: maybe your NIC needs an updated driver?
Cheers
Tru