Support article
cPanel: What Is the Access Port?
cPanel is accessed through port 2083, which is the SSL access port and should always be used. If the server is configured correctly, this port works.
Access to cPanel is done through port 2083. This is the port for SSL access and should always be the one used. If the server is configured correctly, secure access should be active.
To access, use your domain name + :2083, for example:
Access via port 2082 is only available if your domain does not have an SSL certificate active. It is a very bad idea to use port 2082.