Validating Windows 2012 R2 Cluster Fail

Dear Reader,

I am Trying to build a Windows 2012 DC R2 Cluster.

I am having 2 AD Servers in Subnet else than the Subnet where I am trying to build the cluster, there is Firewall Between those 2 Subnets.

We have Limited RPC Port to be from 50000 to 50225, and configured other ports for Name Resolution and AD communication.

I have successfully join those 2 servers to AD, However, when I am trying to validate cluster, I am getting bellow error:

Validate Active Directory Configuration

Connectivity to a writable domain controller from node XX01.XX.X could not be determined because of this error: Could not get domain controller name from machine XX01.

Node(s) XX01.XX.X cannot reach a writable domain controller. Please check connectivity of these nodes to the domain controllers.

-----------------------------------------

After checking on Firewall between AD and those 2 Windows Server, I have find that the Cluster Service is trying to communicate on Dynamic Ports which is denied (Coz we configured windows to use dynamic ports between 50000 to 50225),so is there any way to force Failover cluster dynamic ports to be between 50000 to 50225?

Please let me know your suggestion about this.