AWS Error : None of these Availability Zones contains a healthy target. Requests are being routed to all targets. in AWS

Question

I have created a Application Load Balance in Aws. I have created 2 EC2 and make them a group. After that I add that group to the ALB with listener 80.

But when the syste

Answer 1

Hi all I just encountered the same issue and the solution is a setting in the ALB (Application Load Balancer) itself

Make sure the ALB AZ matches your instance AZ here is a screenshot of the setting. I am using us-east-1a and us-eas-1e for my instance. So my ALB setting for AZ should match that, click on the "Edit Subnets" button to edit your AZ on your ALB