FTP connection to a ReadtNAS Ultra

I tried using Filezilla as a client. Here is the error.


Status: Resolving address of krackerhome.dyndns.org
Status: Connecting to 173.71.6.xxx:xxxx..
Status: Connection established, waiting for welcome message...
Response: 220 ProFTPD 1.3.3c Server (NETGEAR ReadyNAS) [173.71.6.xxx]
Command: USER admin
Response: 331 Password required for admin
Command: PASS ********
Response: 230 User admin logged in
Command: SYST
Response: 215 UNIX Type: L8
Command: FEAT
Response: 211-Features:
Response: MDTM
Response: MFMT
Response: TVFS
Response: AUTH TLS
Response: MFF modify;UNIX.group;UNIX.mode;
Response: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Response: LANG en-US*
Response: PBSZ
Response: PROT
Response: SITE MKDIR
Response: SITE RMDIR
Response: SITE UTIME
Response: SITE SYMLINK
Response: REST STREAM
Response: SIZE
Response: 211 End
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is the current directory
Command: TYPE I
Response: 200 Type set to I
Command: PORT 172,18,192,7,226,172
Response: 200 PORT command successful
Command: MLSD
Error: Connection timed out
Error: Failed to retrieve directory listing