I 3 exchange 2010 server running Windows Server 2008 R2 and Exchange 2010 Enterprise. Both nods have CAS, Mailbox, Hub Transport roles installed. Nodes 1 and two are on the same subnet node 3 on a remote subnet. The problem that I am having is that the DAG name is not being registered in DNS. I can ping the DAG name “dag-test” but not the FQDN of “dag-test.mail.local”. The DNS guy is says the neither server is trying to register that name. How do we go about troubleshooting this issue?