Exchange CAS array (NBL) has been already configured with node CAS node. When i was trying to add third node, in NLB console showing Misconfiguration. Then i delete 2nd node which was working well then i was trying to add third node but same issue and when it showing misconfiguration then the NLB NIC got Ping loss. NLB was configured in unicast mode.
The error below:
Processing update 19 from "NLB Manager on abc.bcd.com" Starting update... Going to modify cluster configuration... Modification failed.
Update failed with status code 0x8004100a.