I have installed Publish Over FTP Plugin 1.9 on Jenkins 1.532 and configured it against a FileZilla Ftp server running on windows 7. I have verified that I can connect to the ftp server from a shell on the slave that runs my jobs.

But when I try to copy a single test.txt file using the Publish Over Ftp plugin (I have configured the server and tested in the master configuration) in a freeStyleProject I get:

FTP: Connecting from host [debian7-slave]
FTP: Connecting with configuration [fileshare] ...
FTP: Disconnecting configuration [fileshare] ...
ERROR: Exception when publishing, exception message [Connection timed out]
Build step 'Send build artifacts over FTP' changed build result to UNSTABLE
Finished: UNSTABLE

I have tried using this plugin instead:
http://wiki.hudson-ci.org/display/HUDSON/FTP-Publisher+Plugin

and it works fine with the same configuration.