AWS Systems Manager now diagnoses more issues that cause EC2 instances to be unmanaged

Today, AWS Systems Manager extends its diagnosis capability to identify six additional categories of issues that can prevent Amazon EC2 instances and hybrid-activated nodes from becoming managed by Systems Manager. An instance must be managed by Systems Manager before you can patch it, run commands, connect with Session Manager, or collect inventory, and when an instance is unmanaged the cause can be difficult to isolate. The diagnosis previously covered network connectivity, and it now also identifies issues with IAM permissions, SSM Agent version, instance status checks, operating system con