Trouble connecting to host! Here's the error message:

Hi guys,

What does this error message mean? (See last line)


Detected Server Software: Serv-U 4.x
PWD
257 "/" is current directory.
PASV
An established connection was aborted by the software in your host machine.
Connection closed.
Resolving host name matt-york.com...
Connecting to (hidden) -> IP: 207.142.129.229 PORT: 21
Connected to (hidden) -> Time = 0ms
Socket connected waiting for login sequence.
220 Serv-U FTP Server v4.1 for WinSock ready...
USER (hidden)
331 User name okay, need password.
PASS (hidden)
230 User logged in, proceed.
SYST
215 UNIX Type: L8
FEAT
211-Extension supported
MDTM
MDTM YYYYMMDDHHMMSS[+-TZ] filename
SIZE
SITE PSWD;EXEC;SET;INDEX;ZONE;CHMOD;MSG
REST STREAM
211 End
Detected Server Software: Serv-U 4.x
PWD
257 "/" is current directory.

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

Hi, [[[TRYPASVPORT][/TRYPASVPORT]][/[TRYPASVPORT][/TRYPASVPORT]]][/[[TRYPASVPORT][/TRYPASVPORT]][/[TRYPASVPORT][/TRYPASVPORT]]]