FTP bare bones 750

Exported a .rsc file from one 750 I want to transfer to another 750. FTP’ing in to the device, it will not allow me to copy the file over into the second 750 for me to execute an import on the config.
What am I missing to allow it to accept the .rsc into the file vault?

Thanks

What error is your FTP client giving?

None
Won’t let you drag the .rsc file over to the 750 files. Logged in as admin of coarse. Is there an alternate permissions setting I am missing?