Win + R, type control firewall.cpl, and hit Enter. 2. Create an Inbound Rule: - Click on "Advanced settings" on the left panel. - In the "Inbound Rules" section, click on "New Rule" on the right panel. 3. Select Rule Type: - Choose the "Port" option and click "Next". 4. Specify Protocol and Ports: - Select "TCP" and specify "Specific local ports" as 65001. - Click "Next". 5. Choose Action: - Select "Allow the connection" and click "Next". 6. Choose Profiles: - Select when this rule applies (keep defaults if unsure) and click "Next". 7. Name and Description: - Provide a name and description for the rule (e.g., "Allow HTTP on Port 65001"). - Click "Finish" to create the rule. After following these steps, incoming TCP traffic on port 65001 will be allowed through Windows Firewall to your web server at 192.168.1.3. Additionally, verify that your router's port forwarding settings are correctly configured to forward incoming HTTP and HTTPS traffic from the external DDNS address to port 65001 on your internal server at 192.168.1.3. If you are running other services on different ports, you can repeat the above steps for each port or create a rule that covers a range of ports if necessary. Feel free to test the connection from an external network to ensure that the traffic is successfully reaching your web server. Let me know if you need further assistance!