NSX Advanced Load Balancer Controller Password Change Caused Cluster Failure

Problem

NSX Advanced Load Balancer cluster failed because controller password was changed.

Cause

If you changed password of the leader controller outside of NSX-T, then NSX Advanced Load Balancer cluster goes into failed state. During the password change, if another node was made the leader, then the original leader node loses all its configured objects.

Solution

1. From a browser, log in with admin privileges to an NSX Manager at https://<nsx-manager-ip-address>.
2. Update the password in NSX-T.
3. On the failed controller nodes, click Start Clustering.
4. If clustering still fails, delete the controller. Go to

   System > Appliances > NSX Advanced Load Balancer

5. Click Actions and click Delete.
6. Re-deploy the appliance.