An established connection was aborted by the software in your host machine.

When I try to connect to certain servers, I get the following problem.

[00:48:48] SmartFTP v2.0.1001.9

[00:48:48] Resolving host name "cowirc.net"

[00:48:48] Connecting to 75.126.10.8 Port: 21

[00:48:48] Connected to cowirc.net.

[00:48:48] 220---------- Welcome to Pure-FTPd [TLS] ----------

[00:48:48] 220-You are user number 1 of 50 allowed.

[00:48:48] 220-Local time is now 23:48. Server port: 21.

[00:48:48] 220-IPv6 connections are also welcome on this server.

[00:48:48] 220 You will be disconnected after 15 minutes of inactivity.

[00:48:48] USER cowirc

[00:48:48] 331 User cowirc OK. Password required

[00:48:48] PASS (hidden)

[00:48:48] 230-User cowirc has group access to:  cowirc  

[00:48:48] 230 OK. Current restricted directory is /

[00:48:48] SYST

[00:48:48] 215 UNIX Type: L8

[00:48:48] Detected Server Type: UNIX

[00:48:48] FEAT

[00:48:48] 211-Extensions supported:

[00:48:48]  EPRT

[00:48:48]  IDLE

[00:48:48]  MDTM

[00:48:48]  SIZE

[00:48:49]  REST STREAM

[00:48:49]  MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;

[00:48:49]  MLSD

[00:48:49]  ESTP

[00:48:49]  PASV

[00:48:49]  EPSV

[00:48:49]  SPSV

[00:48:49]  ESTA

[00:48:49]  AUTH TLS

[00:48:49]  PBSZ

[00:48:49]  PROT

[00:48:49] 211 End.

[00:48:49] Detected Server Software: PureFTPd

[00:48:49] PWD

[00:48:49] 257 "/" is your current location

[00:48:49] TYPE A

[00:48:49] 200 TYPE is now ASCII

[00:48:49] PASV

[00:48:49] 227 Entering Passive Mode (75,126,10,8,98,251)

[00:48:49] Opening data connection to 75.126.10.8 Port: 25339

[00:48:49] MLSD

[00:48:49] An established connection was aborted by the software in your host machine.

[00:48:49] Server closed connection

At first I thought it was my company's firewall blocking the connection, because I CAN connect to this FTP server on the SAME laptop from home, but I can connect to other external FTP's from work, and the Windows command-line FTP program will successfully connect to THIS FTP from work.

My *guess* is that it's something to do with Vista. Here's my system info:

+- System -----------------------------

Microsoft Windows Vista Professional 

 (Build 6000)



CPU Speed		 : 1828 MHz

Total Memory	  : 2095808 KB

Free Memory	   : 1201080 KB



+- SmartFTP ---------------------------

Version		   : 2.0.1001.9

Time Stamp		: 2007-01-11 05:41:58

Platform		  : x86



+- Application DLL --------------------

sfFTPLib.dll	  : 1.5.9.3

SmartHook.dll	 : 1.0.2.1



+- Language ---------------------------

SmartFTP.exe	  : 2.0.1001.9



+- System DLL -------------------------

shell32.dll	   : 6.0.6000.16386 (vista_rtm.061101-2205)

shlwapi.dll	   : 6.0.6000.16386 (vista_rtm.061101-2205)

comctl32.dll	  : 6.10 (vista_rtm.061101-2205)

riched20.dll	  : 5.31.23.1225

schannel.dll	  : 6.0.6000.16386 (vista_rtm.061101-2205)



+- Internet Explorer ------------------

Version		   : 7.0.6000.16386



+- Winsock ----------------------------

Winsock		   : 2.2