We have 2 controllers added in one cluster and it was working fine, client requested to change both IPs of the two controllers, after changing the IPs, both controllers are up & both are pingable but each controller is not seeing the other controller, and we got this error:
The cluster node AESHJWLC02-SRV-HQ is out of service. This can be caused by a network outage, controller reboot, firmware update, or other service disruption. To troubleshoot, use the events/alarms or system monitoring menus within the system.
Both controllers dealing individually as a leader.