Go to the previous, next section.
The ftp site is down for some reason. Try again later.
Check your spelling of the site name.
Type something in, hit enter, type `bye', hit enter, and try again. Alternately, try typing `ftp' instead of `anonymous'. It will work on a surprising number of sites. Or just use ncftp, if your site has it, and never worry about this again.
Go to the previous, next section.