Connection closed by remote host with quite big files

[Carlos Antunes]

I am using CoreServer FTP 1.2 build 498 32bits and when i download a file bigger than 20MB in a directory with the above commands, i receive a message "Connection closed by remote host.". Any ideas?

open ??.???.???.???
username
password
prompt
binary
lcd c:\FC\teste
cd /Directory1
mget *
cd /
cd /Directory2
mget *
cd /
cd /Directory3
mget *
...
200 MODE set to I
200 PORT command successful
150 RETR command started
Connection closed by remote host.
ftp>cd /
Not connected


Many thanks.