Error de cliente FTP: Could not retrieve directory listing

[bola]

Hola,

utilizo el Filezilla como cliente FTP y tengo el siguiente error cuando intento conectarme al servidor:

Status: Connecting to ***.***.de ...
Status: Connected with ***.***.de. Waiting for welcome message...
Response: 220 Serv-U FTP Server v5.0 for WinSock ready...
Command: USER ruiz
Response: 331 User name okay, need password.
Command: PASS *******
Response: 230 User logged in, proceed.
Command: FEAT
Response: 211-Extension supported
Response: CLNT
Response: MDTM
Response: MDTM YYYYMMDDHHMMSS[+-TZ];filename
Response: SIZE
Response: SITE PSWD;EXEC;SET;INDEX;ZONE;CHMOD;MSG
Response: REST STREAM
Response: XCRC filename;start;end
Response: 211 End
Command: SYST
Response: 215 UNIX Type: L8
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is current directory.
Command: TYPE A
Response: 200 Type set to A.
Command: PORT 192,168,0,80,4,146
Response: 200 PORT Command successful.
Command: LIST
Response: 150 Opening ASCII mode data connection for /bin/ls.
Response: 426 Data connection closed, transfer aborted.
Error: Could not retrieve directory listing


El modo pasivo lo tengo deshabilitado.

Agradecería que alguien me ayudase a detectar el problema.

Gracias.