Server Variables Not Resolving Reliably

[MikhailCompo]

I cant upload files??????................

Error is "Could not boot image: No such file or directory"

Code:

#!ipxe
set boot-url http://${next-server}
# set boot-url http://${dhcp-server}

# Set Menu Timeout
set menu-timeout 5000
set submenu-timeout ${menu-timeout}

# Set Menu Default to Exit after timeout
isset ${menu-default} || set menu-default exit
#console --picture http://${boot-url}/ipxe.png

######## MAIN MENU ###################
:start
menu Mike's PXE Boot Menu ${boot-url}
item --gap -- ----- Choose the Boot Option required -----
item WIMBootHTTP-ISO Boot to ISO over HTTP
item WIMBootHTTP-WIM Boot to WIM over HTTP
item WIMBootTFTP Boot to WIM over TFTP
item reboot Reboot
choose --default exit --timeout 30000 target && goto $

:WIMBootHTTP-ISO
kernel wimboot
initrd ${boot-url}/images/LiteTouchPE_x64.iso
kernel ${boot-url}/memdisk iso raw
boot

:WIMBootHTTP-ISO
kernel wimboot
initrd ${boot-url}/boot/BCD
initrd ${boot-url}/boot/boot.sdi
initrd ${boot-url}/sources/boot.wim
boot

:WIMBootTFTP
kernel wimboot
initrd /boot/BCD
initrd /boot/boot.sdi
initrd /sources/boot.wim
boot

:reboot
Reboot

:exit
exit