hi all ,

i have recently installed two new exchange server 2013 ( CAS03 and MBX03 ) and this two new server will be added to current exchange i have ( CAS01 , CAS02 ) (MBX01,MBX02) .

after finish the installation i have add the mailbox (MBX03 ) successfully to DAG .

after adding CAS03 to current NLB all the users was not able to access the mail servers. 

did i miss something need to be done ? 

do i need to configure this CAS03 in CAS array ?

and what other configuration need to be set on this new server ?

• Edited by JavaHeart 23 hours 7 minutes ago
• Moved by Jason Johnston [MSFT]Microsoft employee 16 hours 31 minutes ago Not a development question.

more information is required on this 

Can you please tell what is the error message users are getting

Did you get any information on the windows event logging related to windows NLB

Hi ,

I addition to Sathish suggestions .

First of all in exchange 2013 there is no cas array object .

1.In the newly added CAS server make sure all the url are configured properly .

2.Make sure you have installed the SAN certificate on the new cas server.

3.Then check the status of all the nodes in the windows NLB and it should have to be in the converged state.

4.In if case you have face any error messages on the cluster for that particular node please share with us .

This forum is for Exchange development questions. Your question seems like more of a setup question, and would be better served in the Exchange setup forum on TechNet. I'll move it over for you.