New PC installing image, but keeping FOG IP

[lidco]

Fog has been working very well imaging. But two new laptops are keeping the IP address assigned to the FOG server, not getting a DHCP assigned address, so are therefore not joining the domain.

Whenever I get a new piece of hardware I add the MAC address manually to the dhcpd.conf file, then do the image. I’ve tested a current PC and that is imaging as it should. Would there be a limit to the size of the conf file? I am unsure of changing the PXE settings on our DHCP server as we have another PXE server running on the network, although in another sub domain.