Howdy. I'm trying to mirror an intranet site, but I keep getting:

11:10:42	Error: 	"Unauthorized" (401) at link
Ian.Varley:xxxxxxx@subdomain.domain.net/Net/index.asp (from primary/primary)

(I've replaced my password with "xxxxx" and the real subdomain and domain with
fake ones here for privacy).

I read in a couple places that some kinds of authentication, like challenge
response, aren't implemented. Is that's what is going on here? Using the same
username and password directly in a browser works just fine.