backup on network disk

[roland <roland@xxxxxx>]

Hello,
I am using ncftpput to make a backup on a network disk like 'LaCie'
and it works
tar -cvzf - /home | ncftpput -uroland -p mypasswd -c 150.50.50.4  
backup/home.gz

I tried the same on a 'conceptronic'  disk and I received the message as  
you can see in the annex.

Is there anybody who has an idea what this could mean?

Thanks for your help,
--
Roland Brouwers
C.A.T. bvba
B-2660 Antwerpen

ncftpput -uroland 150.50.50.4 backup /home/roland/work_ncftp.txt
Password: ******
Invalid reply: "USER  PASS  QUIT  PORT  NLST  LIST  TYPE  MODE  RETR
STOR"
Invalid reply: "DELE  CWD  CDUP  PWD  XPWD  MKD  XMKD  RMD  XRMD  NOOP"
Invalid reply: "SYST  ABOR  RNFR  RNTO  PASV  REST  APPE  STAT  HELP
SIZE"
ncftpput: Could not change to directory backup: invalid reply from
server.
Invalid reply: "SITE  FEAT  OPTS  "