Can't connect after installing Wireless Router

Love this program. Haven't used it for a month or so. Went to use it today and it won't connect. Husband reminded me we have changed routers since I last used SmartFTP. Not sure if this is the cause of my problem. Any help is much appreciated.

Thanks!

This is the error we are getting:

SmartFTP v1.5.988.47
Resolving host name "members.optusnet.com.au"
Connecting to 211.29.132.18 Port: 21
Connected to members.optusnet.com.au.
220 ProFTPD 1.2.6 Server (ProFTPD Default Installation) [uweb01.syd.optusnet.com.au]
USER (hidden)
331 Password required for (hidden).
PASS (hidden)
230 User (hidden)@optusnet.com.au logged in.
SYST
215 UNIX Type: L8
FEAT
500 FEAT not understood.
TYPE I
200 Type set to I.
REST 0
350 Restarting at 0. Send STORE or RETRIEVE to initiate transfer.
PWD
257 "/" is current directory.
PASV
An established connection was aborted by the software in your host machine.
Server closed connection