I have 2 Exchange servers. Servers are oxexsrv1 and oxexsrv2. Both with CAS and mailbox roles. I also have a DAG in place. I have a split dns in my internal dns of mail.company.com and autodiscover.company.com. Both have Round Robin Host A records pointing to each I.P. Address of both Exchange servers. I performed a Test-OutlookWebService for my mailbox in both servers, and was successful. I also made sure that my AutoDiscoverServiceInternalUri matches the Autodiscover.xml file and they do.
My problem is, that if I shut down oxexsrv1, my Outlook client will not connect to oxexsrv2. The DAG moves the datastores from passive to active no problem. But my client will not connect, nor will OWA work. I tried ipconfig\flushdns. I have pinged the mail.company.com and it points to oxexsrv2 when 1 is shut off. But it just wont connect.
I don't know what to do. I think I tried everything but I obviously am missing something. Another thing to note is that while oxexsrv1 is on, I can perform a server switchover to oxexsrv2 and it works fine there too for the datastores. But if oxexsrv1 is off, it is if oxexsrv2 CAS role just wont work. (There are no firewalls on blocking 443)
Fairly new to Exchange. I have had a consultant help, but he seems to be stumped too. This is really driving me crazy, and any suggestions would be most welcome. Powershell is still a little new to me, so I apologize in advance if I have questions to your suggestions on how to perform the cmdlet.