I finally figured it out.
Once I changed the "Allow" argument to a *numeric* IP address, it worked!
What I don't understand is the online documentation states:
<Location /path>
...
Allow from All
Allow from None
==> Allow from *.domain.com
==> Allow from .domain.com
==> Allow from host.domain.com
Allow from nnn.*
Allow from nnn.nnn.*
Allow from nnn.nnn.nnn.*
Allow from nnn.nnn.nnn.nnn
Allow from nnn.nnn.nnn.nnn/mm
Allow from nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm
Allow from xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
Allow from @LOCAL
Allow from @IF(name)
</Location>
Because of that, I had originally used the FQDN.
Anyway, I can now proceed to configure some remote printers.
Thanks for everyone's help!
-Kenneth