How to verify status or unregister EC2 Instance from Elastic Load Balancer ELB
Follow these steps to verify status of registered EC2 Instances:
From the Main Menu, select Elastic Load Balancer.
Click the black arrow on the left to expand EC2 Instances.
A list of all Instances registered under the given ELB is shown. The status of each Instance is displayed in the Status column.
To unregister an Instance from ELB, click Unregister.