Solution
Short answer: No, it is not supported. It was once semi-possible to run cPanel behind a NAT firewall, however the system has changed somewhat so that if you use more than one server behind the NAT (more than one appears from behind the same public IP), the license server will lock the public IP out to prevent abuse. There are other technical problems such as virtual hosting with apache and domain->ip mapping, dns and so on that prevent us from supporting this method.
If you have any further issues, questions, or would like some assistance checking on this or anything else, please reach out to us from your my.hivelocity.net account and provide your server credentials within the encrypted field for the best possible security and support.
If you are unable to reach your my.hivelocity.net account or if you are on the go, please reach out from your valid my.hivelocity.net account email to us here at: support@hivelocity.net. We are also available to you through our phone and live chat system 24/7/365.