How to Open Ports 80 and 443 on a Cisco EA4500 Router for Windows Server 2011?

To set up port forwarding on your Arris cable modem, you’ll need to access the router's firmware through your web browser. You can do this by entering the router's IP address into the address bar. Once you're in, look for the section labeled "Applications and Gaming." Here, you'll find options for port forwarding. You have two choices for forwarding ports: "Single Port Forwarding" and "Port Range Forwarding." If you only need to forward specific ports, you can use the Single Port Forwarding option. For example, if you want to forward HTTP traffic, you would select HTTP under Application, set both the External Port and Internal Port to 80, and choose TCP as the protocol. Make sure to assign the correct IP address that you want to forward the ports to. If you need to forward multiple ports, the Port Range Forwarding option is more efficient. You can specify a range of ports to forward at once, which can save you some time. For most applications, you’ll want to forward both Port 80 and Port 443. Port 80 is used for standard web traffic, while Port 443 is used for secure web traffic. Once you've set this up, your devices should be able to communicate through those ports without any issues.