ftp_connect/ running at background job

Hi,

When I try to run the FTP_CONNECT FM in background,

the ftp server is not connected throwing an error message ''Attempt to set up connection to <ftpserver> failed''.

I am using the RFC destination SAPFTPA and still it is not working!

My program was successfully executing in fore ground with SAPFTP.

Please help.

Thanks and Regards,

Kumar