pure-ftp error - Server sent passive reply with unroutable address. Passive mode failed.

Hi,

I updated ISPCofig to the 3.1dev version. Before FTP worked fine and now it connects, uploads a little and gives me the error

Code:

Server sent passive reply with unroutable address. Passive mode failed.

I have an external MariaDB and configured it into /etc/pure-ftpd/db/mysql

Code:

##############################################
#                                            #
# Sample Pure-FTPd Mysql configuration file. #
# See README.MySQL for explanations.         #
#                                            #
##############################################


# Optional : MySQL server name or IP. Don't define this for unix sockets.

MYSQLServer     xxxxxxxxxxxxxxxxxxxxxx.sa-east-1.rds.amazonaws.com


# Optional : MySQL port. Don't define this if a local unix socket is used.

MYSQLPort       3306


# Optional : define the location of mysql.sock if the server runs on this host.

# MYSQLSocket      /var/run/mysqld/mysqld.sock


# Mandatory : user to bind the server as.

MYSQLUser       ispconfig


# Mandatory : user password. You must have a password.

MYSQLPassword   xxxxxxxxxxxxxxxxxxxxxc4e0


# Mandatory : database to open.

MYSQLDatabase   dbispconfig


# Mandatory : how passwords are stored
# Valid values are : "cleartext", "crypt", "md5" and "password"
# ("password" = MySQL password() function)
# You can also use "any" to try "crypt", "md5" *and* "password"

MYSQLCrypt      crypt

I have set the PassivePortRange

Code:

30000 50000

And made shure that these ports are open in the firewall (UWF, the router and the amazon Firewall).
I am using FileZilla, It's in Passive modem, tested all configuratoin settings
I can create and delete directories, can upload a bit but on bigger files it hangs at 25% for example.