Connection closed on port 443

I have an Ec2 server with Jenkins docker and git installed on it. The server is running behind. Load balancer with dns configured on route 53 A records as alas to the application load balancer the ALB is listener on 80 redirected to 443 map to a target group registered with my instance ID on port 8080 because Jenkins run on port 8080, when I put the URL of my A record on the browser it open up Jenkins default login page, Jenkins time out while am try to configure to build, the error message read as: connection closed on port 443. Please help am behind schedule to start building. Thanks