Using Filezilla FTP server and cPanel backup. Doesn't transfer files.

I have an issue that has mne scratching my head. I would like to backup my server, to a box inside my home.
I have port 21 forwarded correctly, and can connect to the FTP server and transfer a file as if I was uploadeing a webpage. SO it all work just fine.

But when cPanel tries to transfers files, I get the following output:

Code:

(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> 230 Logged on
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> TYPE I
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> 200 Type set to I
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> MKD cpbackup
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> 550 Directory already exists
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> MKD cpbackup/daily
(000260) 5/3/2010 7:56:59 AM - xxxxx (ip)> 550 Directory already exists
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> CWD cpbackup/daily
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> 250 CWD successful. "/cpbackup/daily" is current directory.
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> ALLO 723553816
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> 202 No storage allocation neccessary.
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> PASV
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> 421 Can't create socket
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> QUIT
(000260) 5/3/2010 7:57:00 AM - xxxxx (ip)> 221 Goodbye

What is real interesting is that cPanel was, initially, able to login and create the backup directories. But it is unable to transfer the files.
Does anyone have any ideas on this? Again, it is Filezilla FTP server

 

Does anyone know a good Windows based FTP server to use with cPanel?
I can't seem to get any configuration to work with Filezilla and cPanel.

 

Ok, I'll try that. I had it enabled because it says to have it enabled on an FTP server that is behind a FIREWALL/NAT. But perhaps the port forwarding negates that?
My home router is a Linksys wrt-54g-TM (Basically upgraded wrt54g-L) running DD-WRT firmware.