Sorry i saw FTP and thought of a mod pack, didnt fully read it. I see you meant the protocol of File Transfer Protocol.
In that case read/write permissions probably wont take affect, but you can check anyway. If you right click the file before uploading and click properties and then click security, you will see who and what has access to read the file and write to it. I am assuming your running Windows.
Like i said, i doubt its that, so why its going wrong i dont know.
If you download the server back to your home pc, are you able to see the server icon then (as in boot the server on your home network and attempt to connect to the ip of “localhost” (without ")?