Directory listing timeout with ProFTPd in Centos and Virtualmin

I’m using Virtualmin to manage a Centos 5.7 machine. When trying to use FileZilla to access the server using ftp I kept getting the following errors: Status: Resolving address of servername.com Status: Connecting to IP_ADDRESS:21… Status: Connection established, waiting for welcome message… Response: 220 FTP Server ready. Command: USER my_username Response: 331 Password required for servername.com Command: PASS ******* Response: 230 User my_username logged in Command: OPTS UTF8 ON Response: 200 UTF8 set to on Status: Connected Status: Retrieving directory listing… Command: PWD Response: 257 “/” is the current directory Command: TYPE I Response: 200 Type set to I Command:Continue reading… Directory listing timeout with ProFTPd in Centos and Virtualmin