For some reason the FOG does not start on the client. It tells me to enter the address of the tftp server. Even if I enter the tftp server address 10.1.1.252 it does not connect.

I have also attached the configuration of the dhcpd.conf files . The tftp server i.e. next-server is configured and in principle the boot image for the correct architecture should be loaded based on the classes.

Do you have any tips ?
Thanks in advance for any help.