Supporting FQDN from Browser on Localhost
If you attempt to access Records Management using a Fully Qualified Domain Name from the local machine where Records Management is installed, IIS prevents you from being able to access the site with an HTTP 401.1 status code. This is because Windows performs a loopback check in this scenario to prevent reflection attacks on your computer, which causes Authentication to fail.
To enable access to the site, refer to the following Microsoft knowledge base article: