To deploy an NSX Advanced Load Balancer Controller cluster, first deploy a single NSX Advanced Load Balancer Controller node (the leader), and then add the follower nodes to the leader.
Ensure that after using the setup wizard to install NSX Advanced Load Balancer on the follower nodes, you do not make any other configuration changes on these nodes.
For more information about initial cluster deployment, see Deploying a VMware NSX Advanced Load Balancer Controller Cluster topic in the VMware NSX Advanced Load BalancerInstallation Guide.