Samba as PDC Cluster

Dear all,

I have implemented Samba PDC. Its working fine. But o do Highly Available, I have been trying to make it in 2 node cluster. Everything is running fine. But facing a problem, which I want to share.

When I shift PDC to another cluster node. Everything is shifting fine. But my existing user can not log in. The can logged in again if I rejoined that mechine again to domain. I am explaining little bit more.

Suppose user X can log in to my ClusterNode 1 PDC from a machine Y. If my ClusterNode 1 goes down all the resources are shifting to the ClusterNode 2. When user X try to log in from the same machine Y. X cant. I need to rejoined machine Y to the ClusterNode 2 then user X can log in.

Need Help please.