Connection problems

I am kinda new to ftp and we have a user who can't connect to a certain site with SmartFTP, but downloaded FileZilla and connect just fine using default settings. He is also using default settings with SmartFTP for this connection. He is using an Implicit SSL connection.

Here is his connection log;

[08:20:00] SmartFTP v4.0.1050.0

[08:20:00] Resolving host name "[ip address]"

[08:20:00] Connecting to [ip address] Port: 990

[08:20:00] Connected to [ip address].

[08:20:00] Connected. Exchanging encryption keys...

[08:20:01] Session Cipher: 128 bit RC4

[08:20:01] TLS encrypted session established.

[08:20:01] 220 Microsoft FTP Service

[08:20:01] USER xxxxxxxx\xxxxxxxxxx

[08:20:01] 331 Password required for xxxxxxxx\xxxxxxxxxx.

[08:20:01] PASS (hidden)

[08:20:01] 230 User logged in.

[08:20:01] SYST

[08:20:01] 215 Windows_NT

[08:20:01] Detected Server Type: Windows NT

[08:20:01] RTT: 55.379 ms

[08:20:01] FEAT

[08:20:01] 211-Extended features supported:

[08:20:01] LANG EN*

[08:20:01] UTF8

[08:20:01] AUTH TLS;TLS-C;SSL;TLS-P;

[08:20:01] PBSZ

[08:20:01] PROT C;P;

[08:20:01] CCC

[08:20:01] HOST

[08:20:01] SIZE

[08:20:01] MDTM

[08:20:01] REST STREAM

[08:20:01] 211 END

[08:20:01] OPTS UTF8 ON

[08:20:01] 200 OPTS UTF8 command successful - UTF8 encoding now ON.

[08:20:01] PWD

[08:20:01] 257 "/" is current directory.

[08:20:01] TYPE A

[08:20:01] 200 Type set to A.

[08:20:01] PBSZ 0

[08:20:01] 200 PBSZ command successful.

[08:20:01] PROT P

[08:20:01] 200 PROT command successful.

[08:20:01] PORT 10,1,1,33,6,253

[08:20:02] 501 Server cannot accept argument.

[08:20:02] Automatic failover of data connection mode from "Active Mode (PORT)" to "Passive Mode (PASV)".

[08:20:02] PASV

[08:20:02] 227 Entering Passive Mode (10,1,1,254,20,54).

[08:20:02] Passive ip address returned from server different from server ip.

[08:20:02] Opening data connection to 10.1.1.254 Port: 5174

[08:20:02] LIST -aL

[08:20:02] 150 Opening ASCII mode data connection.

[08:20:03] No connection could be made because the target machine actively refused it.




Any information anyone could provide would be much appreciated.
Thanks in advance.

1. Download and install the latest version of SmartFTP: https://www.smartftp.com/download
2. Do not use SSL Implicit. It is deprecated
3. Post the logs from both client. My assumption is that you are not using SSL Implicit for Filezilla.