As replica instances are added or removed from your deployment, your contact lists must occasionally be updated to add or remove references to these instances. To update your manual and automatic contact lists, you must perform an automatic rebalance.
When you perform an automatic rebalance, the following happens:
Manual Contact Lists. RSA Authentication Manager deletes references to instances that have been removed from the deployment.
Automatic Contact Lists. Authentication Manager deletes instances that have been removed from the deployment, and adds references to instances that have been added to the deployment.
Note: In a deployment with more than ten replica instances, the lists must be edited manually.
In the Security Console, click Access > Authentication Agents > Authentication Manager Contact List > Automatic Rebalance.