Cannot add new node to Existing DAG exchange 2016

Kimhong Sieng
Kimhong Sieng used Ask the Experts™
Dear All,

A few weeks ago i have remove one node (EX5) from my DAG manually. After complete the window and exchange installation, i try to add the new node (EX3) back to DAG but i go the error message as below.
"The fully qualified domain name for node 'EX5' could not be found."

Note: I have three nodes before EX1,EX2 and EX5 and now i remove EX5 and the new server is EX3.
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Hi Kimhong,

Verify thtat you pre-staged the cluster name object for a database availability group properly according to this document. If you have configured it correctly, then try to re-create it.

Kimhong SiengIT Support


Dear All,

I have to create new DAG computer in AD but I still get the same message error.
do you have another solution?

Best Regards,
Exchange Engineer
Distinguished Expert 2018
I would suggest creating an IP-Less DAG. I use the IP-less DAG in Exchange 2016, and since there is no Administrative Access Point there is no need for a DAG object in AD. See below to assist in creating an IP-Less DAG. That is one of the best options to me in Exchange.

Enough information to confirm answer

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial