You can try a more up-to-date list of caches.....take a look here:
http://gcachescan.jonatkins.com/
Of course, it is also possible that you have a firewall configuration problem.
And if this also is of no help for you, follow this link and scroll down to the end of the page, where you will find a contact address that might be helpful in solving your problem.
http://ftp.lv.freebsd.org/pub/FreeBS...re/pkg-plist,v
Cheers