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Niklas Gustavsson commented on FTPSERVER-433: --------------------------------------------- It's hard to tell from the provided logs, but I would guess this is a network problem on the ports used for the data connection. Given you connect to localhost, I'm guessing that would exclude firewalls. You could run with SSL debugging enabled on the server, but I'm not sure that will tell you much more: -Djavax.net.debug=all http://docs.oracle.com/javase/1.5.0/docs/guide/security/jsse/ReadDebug.html > Issues with data transfer for explicit SSL connections > ------------------------------------------------------ > > Key: FTPSERVER-433 > URL: https://issues.apache.org/jira/browse/FTPSERVER-433 > Project: FtpServer > Issue Type: Bug > Environment: Linux, java version "1.6.0_30", apache-ftpserver-1.0.5 > Reporter: Søren Juul > > When using the sample configuration with SSL in explicit mode, some clients > (e.g. FileZilla) have problems transferring. There is not problems browsing > data, but when uploading the transfers cuts out regularly, and the transfer > connections must be restarted. Bellow is sample output from the server log > and FileZilla log. > Server log: http://pastebin.com/VBbvux2G > FileZilla log: http://pastebin.com/NP6Yh44s -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira