Can you please e-mail a log containing the error to support@enterp...
It might also be useful for us to see a log from FileZilla.
Something that might be useful to try is to change directories one at a time. So try something like this:
ftpConnection.ChangeWorkingDirectory("/");
ftpConnection.ChangeWorkingDirectory("lu");
ftpConnection.ChangeWorkingDirectory("IN");
ftpConnection.ChangeWorkingDirectory("DAILY");
It's also possible that some of the smarts in SecureFTPConnection are confusing the server somehow. Using the 'purer' EnterpriseDT.Net.Ftp.Ssh.SSHFTPClient would avoid these, so that might be worth a try.
- Hans (EnterpriseDT)