FTP Client hangs in ACTIVE connection mode

Question

Hello,

I am trying the following after connecting to a ftp site:

ftp.setConnectMode(FTPConnectMode.ACTIVE);
log.debug(" >> FTP Active Connection");
ftp.put(file.getAbsolutePath(), file.getName());

I am trying to upload a file to a remote server, and the FTP Client just hangs after display the log message >> FTP Active Connection.


Please advise,

Thank you.

Answer 1

It would be worthwhile looking at the log file, however most likely your firewall isn't permitting the FTP server to connect to your machine for data transfers.