I'm trying to mirror

<https://old.curtis.edu/>

before I shut it down. I'm getting almost everything OK, but pages for the
people listed on this page:

<https://old.curtis.edu/academics/curtis-faculty/>

come through only as zero-byte blank files. I.e. the files are created, but
there's nothing in them. This is true for all of them, so I have a folder full
of blank files named for each of those faculty members.

In the error logs, I see this:

13:06:13	Warning: 	Retry after error -4 (Connect Error) at link
<https://old.curtis.edu/academics/faculty/misha-amory/> (from
<https://old.curtis.edu/academics/curtis-faculty/>)

13:06:13	Warning: 	Retry after error -4 (Connect Error) at link
<https://old.curtis.edu/academics/faculty/thomas-apple/> (from
<https://old.curtis.edu/academics/curtis-faculty/>)

13:06:13	Warning: 	Retry after error -4 (Connect Error) at link
<https://old.curtis.edu/academics/faculty/shmuel-ashkenasi/> (from
<https://old.curtis.edu/academics/curtis-faculty/>)

13:06:13	Warning: 	Retry after error -4 (Connect Error) at link
<https://old.curtis.edu/academics/faculty/stefano-baldasseroni/> (from
<https://old.curtis.edu/academics/curtis-faculty/>)

(etc.)

It's not just some random connection problem--I've tried a few times and I
always get the same result, just for those faculty pages. Any suggestions?
Thanks,
Matt