We've got four Macs on a network, but since we've got a new router (Netgear), I can't connect to one Mac through ethernet. Instead it insists on trying to connect through FTP:

FTP FILE SYSTEM AUTHENTICATION
Enter your user name and password to access the server at the URL "ftp://paul-richardsons-computer.local./."

The usual password/username for ethernet doesn't work. Any ideas?