advice to update the Lenovo Bios? What is the client PC?
Sorry I don’t understand the question. What I’m suggesting is to update the pc bios on the lenovo computers, or at least check the installed version vs what is current from the Lenovo web site.
verify if the [SIZE=13px][FONT=Ubuntu][COLOR=#555555]FOG_PXE_IMAGE_DNSADDRESS has the dns address, I had the same issue and now itś downloading the main.cvd file. This configuration are in Fog setting -> TFTP Server[/COLOR][/FONT][/SIZE]