A problem with FTP's MFTM command

Hello,

I am trying to use WinSCP to upload a file to a FTP server, but it fails every time. Well, it doesn't actually fail completely because the file gets copied eventually, but I do get a dialog saying that the file transfer failed, making it impossible to upload multiple files.

Here's an excerpt from the log:

> 2009-07-11 13:19:36.374 TYPE A
< 2009-07-11 13:19:36.405 200 Type set to A
> 2009-07-11 13:19:36.405 PASV
< 2009-07-11 13:19:36.437 227 Entering Passive Mode (80,237,189,85,205,15).
> 2009-07-11 13:19:36.452 STOR home.php
< 2009-07-11 13:19:36.515 150 Opening ASCII mode data connection for home.php
< 2009-07-11 13:19:36.687 226 Transfer complete
> 2009-07-11 13:19:36.687 MFMT 20090710185613 home.php
. 2009-07-11 13:19:51.921 Timeout detected.
. 2009-07-11 13:19:51.921 Copying files to remote side failed.
. 2009-07-11 13:19:52.030 Connection was lost, asking what to do.
. 2009-07-11 13:19:52.030 Asking user:
. 2009-07-11 13:19:52.030 Lost connection. ("Timeout detected.","Copying files to remote side failed.","Transfer complete")
* 2009-07-11 13:19:53.796 (ESshFatal) Lost connection.
* 2009-07-11 13:19:53.796 Timeout detected.
* 2009-07-11 13:19:53.796 Copying files to remote side failed.
* 2009-07-11 13:19:53.796 Transfer complete
* 2009-07-11 13:19:53.796 Copying files to remote side failed.

Is this a client side or server side issue?

If it's server side issue, what can I suggest to techsupport team so they can fix it?

Looks like you server fails to answer MFMT request/command. Maybe you can find something useful in the FTP server log file.