My Book Live FTP?

Well, I had to make some changes to my setup.  To get everything where I needed it to be, I ordered a static IP from my ISP.  So my modem now has that static IP, DynDNS has that IP address.  My modem is now handling routing, NAT, Firewall, etc.  My E4200 is in bridged mode which turns it into a wireless access point.  Now, I can’t login into the FTP.  In FF4, I keep getting “421 Login Incorrect” message.  IE9 asks me for my username and password and I make sure to type it in correctly, and it just spits the login screen back at me.  Google Chrome can’t get anything.  I’m at a complete loss on what is going on.  I’m sure I got port forwarding setup correctly for port 21 and it is being sent to the IP of the MBL.