I have created an instance on Amazon EC2 then installed whm and cpnel. I am able to access cpanel just by using my domain name ex. domainname.com/2083 but when i go to my domain
I got the issue with Windows EC2 while connecting through HTTP 80 port and followed below link.
If your computer is on a corporate network, ask your network administrator whether the internal firewall allows inbound and outbound traffic from your computer on port 22 (for Linux instances) or port 3389 (for Windows instances).
If you have a firewall on your computer, verify that it allows inbound and outbound traffic from your computer on port 22 (for Linux instances) or port 3389 (for Windows instances).
or follow link: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstancesConnecting.html#TroubleshootingInstancesConnectionTimeout
Check Firewall settings in your Windows EC2: Goto > Firewall Settings or Properties choose public profile > check inbound connections, change to "Allow" if it is "Blocked by default"