I can't figure out what you are saying.
Did you try a "put" of some file to the server and it failed? Is that user you connected with a user that can use and write to the drive?
I know this is aix example but similar ideas in linux. I just can't find a better example.
http://publib.boulder.ibm.com/infoce...cmds5/tftp.htm
Dunno if your OS needs a users or hosts to be allowed.