The warning you see identifies that your domain or server IP address is not the primary destination point for this SSL certificate.
We recommend you to use the link https://my.serverhostname.com:2083/ , in this case the warning will not appear, as the request to establish secure connection will be sent to the very hostname with installed SSL certificate.
However, you can use the links with your domain or server IP address as well, you will just need to add the certificate as trusted exception in your browser and the warning will not appear again.