According to the Issue posting, it has been resolved in 4.3.2, but I am receiving the same error in 4.3.2.
Here is my log:
. 2011-04-29 07:57:26.081 --------------------------------------------------------------------------
. 2011-04-29 07:57:26.081 WinSCP Version 4.3.2 (Build 1201) (OS 6.0.6002 Service Pack 2)
. 2011-04-29 07:57:26.081 Login time: Friday, April 29, 2011 7:57:26 AM
. 2011-04-29 07:57:26.081 --------------------------------------------------------------------------
. 2011-04-29 07:57:26.081 Session name: FTP_User@123.232.134.154
. 2011-04-29 07:57:26.081 Host name: 123.232.134.154 (Port: 990)
. 2011-04-29 07:57:26.082 User name: FTP_User (Password: Yes, Key file: No)
. 2011-04-29 07:57:26.082 Tunnel: No
. 2011-04-29 07:57:26.082 Transfer Protocol: FTP
. 2011-04-29 07:57:26.083 Ping type: C, Ping interval: 30 sec; Timeout: 15 sec
. 2011-04-29 07:57:26.083 Proxy: none
. 2011-04-29 07:57:26.083 FTP: FTPS: Implicit SSL/TLS; Passive: Yes [Force IP: No]
. 2011-04-29 07:57:26.083 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2011-04-29 07:57:26.083 Cache directory changes: Yes, Permanent: Yes
. 2011-04-29 07:57:26.083 DST mode: 1
. 2011-04-29 07:57:26.083 --------------------------------------------------------------------------
. 2011-04-29 07:57:26.140 Connecting to 123.232.134.154:990 ...
. 2011-04-29 07:57:26.143 Connected with 123.232.134.154:990, negotiating SSL connection...
. 2011-04-29 07:57:26.231 SSL connection established. Waiting for welcome message...
< 2011-04-29 07:57:26.231 220 Microsoft FTP Service
> 2011-04-29 07:57:26.231 USER FTP_User
< 2011-04-29 07:57:26.274 331 Password required for FTP_User.
> 2011-04-29 07:57:26.274 PASS *********
< 2011-04-29 07:57:26.314 230 User logged in.
> 2011-04-29 07:57:26.314 SYST
< 2011-04-29 07:57:26.353 215 Windows_NT
> 2011-04-29 07:57:26.353 FEAT
< 2011-04-29 07:57:26.394 211-Extended features supported:
< 2011-04-29 07:57:26.394 LANG EN*
< 2011-04-29 07:57:26.394 UTF8
< 2011-04-29 07:57:26.395 AUTH TLS;TLS-C;SSL;TLS-P;
< 2011-04-29 07:57:26.395 PBSZ
< 2011-04-29 07:57:26.395 PROT C;P;
< 2011-04-29 07:57:26.395 CCC
< 2011-04-29 07:57:26.395 HOST
< 2011-04-29 07:57:26.395 SIZE
< 2011-04-29 07:57:26.396 MDTM
< 2011-04-29 07:57:26.396 REST STREAM
< 2011-04-29 07:57:26.396 211 END
> 2011-04-29 07:57:26.396 OPTS UTF8 ON
< 2011-04-29 07:57:26.442 200 OPTS UTF8 command successful - UTF8 encoding now ON.
> 2011-04-29 07:57:26.442 PBSZ 0
< 2011-04-29 07:57:26.483 200 PBSZ command successful.
> 2011-04-29 07:57:26.483 PROT P
< 2011-04-29 07:57:26.522 200 PROT command successful.
. 2011-04-29 07:57:26.525 Connected
. 2011-04-29 07:57:26.525 --------------------------------------------------------------------------
. 2011-04-29 07:57:26.525 Using FTP protocol.
. 2011-04-29 07:57:26.525 Doing startup conversation with host.
> 2011-04-29 07:57:26.528 PWD
< 2011-04-29 07:57:26.568 257 "/" is current directory.
. 2011-04-29 07:57:26.571 Getting current directory name.
. 2011-04-29 07:57:26.576 Retrieving directory listing...
> 2011-04-29 07:57:26.576 TYPE A
< 2011-04-29 07:57:26.614 200 Type set to A.
> 2011-04-29 07:57:26.615 PASV
< 2011-04-29 07:57:26.654 227 Entering Passive Mode (192,168,100,154,19,144).
> 2011-04-29 07:57:26.654 LIST -a
< 2011-04-29 07:57:26.700 150 Opening ASCII mode data connection.
. 2011-04-29 07:57:41.290 Timeout detected.
. 2011-04-29 07:57:41.290 Could not retrieve directory listing
* 2011-04-29 07:57:41.310 (ESshFatal) Lost connection.
* 2011-04-29 07:57:41.311 Timeout detected.
* 2011-04-29 07:57:41.311 Could not retrieve directory listing
* 2011-04-29 07:57:41.311 Opening ASCII mode data connection.
* 2011-04-29 07:57:41.311 Error listing directory '/'.