Hi Den - Came across an interesting thing. May that might be the issue.
In the XI FTP communication channel is not possible to left “Target Directory” field empty. Command CWD will be called and it is not possible to skip it. Instead of the root directory symbol “/” it is possible to put current directory symbol “.” to the “Target Directory” field. In such way file will be uploaded / downloaded from the default directory and there is no call to the root directory of FTP server. Command “CWD .” doesn’t raise an error.
Source : http://xitricks.wordpress.com/2010/07/12/ftp-change-working-directory/
Also SAP Note :821267 - FAQ: XI 3.0 / PI 7.0 / PI 7.1 / PI 7.3 File Adapter
FTP: Directory Specification / CWD Command
- Q: Is there any way to configure a File Adapter channel with the Transport Protocol "FTP" without an explicit source / target directory, so that no CWD command will be issued?
- A: The directory specification is mandatory. According RFC 1123 an FTP server is required to support the CWD command.