are you sure the key your trying to use is the same one listed on the buddyauth website? are you sure theres no spaces before or after your key? if your sure, try flushing your dns http://www.whatsmydns.net/flush-dns.html reset your host file back to default. http://www.askvg.com/how-to-reset-hosts-file-to-default-in-windows-xp-vista-and-7/ and try power cycling your home router.
