The issue described indicates that HTTPS (port 443) access is not working for one specific server (172.16.50.3) in the network farm, while it works for the others. This suggests that the transport port (port 443) might be blocked or filtered for this particular server. * Transport Port Blocking: Network firewalls or security groups might block specific ports for certain IP addresses. * Server Configuration: The server might not have the necessary configuration to accept HTTPS connections on port 443. * Troubleshooting: Verifying firewall rules, security group settings, and server configurations can help identify and resolve the issue. References: * Network Troubleshooting Guide: Troubleshooting Network Issues