files and folders not displayed - smartftp timeout

i am attempting to use smartftp to transfer files within a vpn.
i log in to my vpn using VPN client, i can connect with the server using a variety of different usernames and passwords but the contents of the folders never display and then i get a timeout message.

i have tried changing from passive to port mode, and increasing the timeout settings to 90 sec but still never get the directories to display.

i disabled all internet security settings, etc., with no success either

am i missing something?

please help,

thank you,

ian

here is the log:



[08:23:14] SmartFTP v2.0.997.4
[08:23:15] Resolving host name "xx.xxx.xx.xx"
[08:23:15] Connecting to xx.xxx.xxx.xx Port: 21
[08:23:15] Connected to xx.xxx.xxx.xx.
[08:23:15] 220 (vsFTPd 2.0.1)
[08:23:15] USER xxxxxxxxx
[08:23:15] 331 Please specify the password.
[08:23:15] PASS (hidden)
[08:23:15] 230 Login successful.
[08:23:15] SYST
[08:23:15] 215 UNIX Type: L8
[08:23:15] Detected Server Type: UNIX
[08:23:15] FEAT
[08:23:15] 211-Features:
[08:23:15] EPRT
[08:23:15] EPSV
[08:23:15] MDTM
[08:23:15] PASV
[08:23:15] REST STREAM
[08:23:15] SIZE
[08:23:15] TVFS
[08:23:15] 211 End
[08:23:15] PWD
[08:23:16] 257 "/var/www/xxxxxx"
[08:23:16] TYPE A
[08:23:16] 200 Switching to ASCII mode.
[08:23:16] PASV
[08:23:16] 227 Entering Passive Mode (10,252,131,59,136,186)
[08:23:16] Opening data connection to 10.252.131.59 Port: 35002
[08:23:16] LIST -aL
[08:23:16] 150 Here comes the directory listing.
[08:23:16] 226 Directory send OK.
[08:23:46] Transfer Timeout (30s). Closing data connection.
[08:23:46] 0 bytes transferred. (0 bytes/s) (00:00:30)
[08:24:36] NOOP
[08:25:06] Timeout (30s).
[08:25:06] Active Help: https://www.smartftp.com/support/kb/74
[08:25:06] Client closed the connection.