As you ask sometime to give the result of this command :
http://192.168.39.243/fog/service/ipxe/boot.php?mac=10:65:30:64:39:54
It’s the mac address of the problematic computer
Here is the result
#!ipxe
set fog-ip 192.168.39.243
set fog-webroot fog
set boot-url http://${fog-ip}/${fog-webroot}
cpuid --ext 29 && set arch x86_64 || set arch i386
goto get_console
:console_set
colour --rgb 0x00567a 1 ||
colour --rgb 0x00567a 2 ||
colour --rgb 0x00567a 4 ||
cpair --foreground 7 --background 2 2 ||
goto MENU
:alt_console
cpair --background 0 1 ||
cpair --background 1 2 ||
goto MENU
:get_console
console --picture http://192.168.39.243/fog/service/ipxe/bg.png --left 100 --right 80 && goto console_set || goto alt_console
:MENU
menu
colour --rgb 0x00567a 0 ||
cpair --foreground 1 1 ||
cpair --foreground 0 3 ||
cpair --foreground 4 4 ||
item --gap Host is pending approval!
item --gap -- -------------------------------------
item fog.local Boot from hard disk
item fog.memtest Run Memtest86+
item fog.deployimage Deploy Image
item fog.multijoin Join Multicast Session
item fog.sysinfo Client System Information (Compatibility)
item fog.approvehost Approve This Host
choose --default fog.local --timeout 10000 target && goto ${target}
:fog.local
sanboot --no-describe --drive 0x80 || goto MENU
:fog.memtest
kernel memdisk initrd=memtest.bin iso raw
initrd memtest.bin
boot || goto MENU
:fog.deployimage
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param qihost 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.multijoin
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param sessionJoin 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:fog.sysinfo
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 keymap=fr web=http://192.168.39.243/fog/ consoleblank=0 rootfstype=ext4 storage=192.168.39.243:/home/images/ storageip=192.168.39.243 loglevel=4 mode=sysinfo
imgfetch init_32.xz
boot || goto MENU
:fog.approvehost
login
params
param mac0 ${net0/mac}
param arch ${arch}
param username ${username}
param password ${password}
param approveHost 1
isset ${net1/mac} && param mac1 ${net1/mac} || goto bootme
isset ${net2/mac} && param mac2 ${net2/mac} || goto bootme
param sysuuid ${uuid}
:bootme
chain -ar http://192.168.39.243/fog/service/ipxe/boot.php##params ||
goto MENU
autoboot
