Cornerstone won't load, cant access the end point

Cornerstone won’t load because of a “Failed to load resource: the server responded with a status of 403 ()” /cornerstone-endpoint

Do not tell me to whitelist it at my host, we have security arrangements that will not allow us to do so, period.

Updated to PHP 5.6, cleared the cache, etc. tried all the options under all the other Cornerstone Won’t Load forum postings.

never mind, we are switching the site over to a different theme.

Hi There,

Thanks for writing in! 403 means a permission issue on your server. This issue is mostly due to incorrect server or WordPress setup. You can contact your hosting provider to resolve this issue.

Thanks!