FTP chainloading a menu.ipxe

[NiKiZe]

You should see Script.
if PXE-NBP then it runs as binary code.
So you are using different files to test.... could you donwload the ipxe script example and put on your server as is and test that?
make sure that your script is a valid script with #!ipxe in ASCII as the first bytes.
If it is - I would start to use tcpdump on the FTP box, since that is the only way that you will see what is actually going on.