Windows Server 2008 R2: The secondary domain cannot switch over

Dear All,

I have two domain controller running on Windows Server 2008 R2 SP1 and 3 exchange server. all the time during I do the weekend maintenance, I will restart the server after patching the system.

I noted the secondary domain controller cannot handover Directory Service.


It is affect to exchange server. I cannot connect to exchange server with Microsoft outlook but I can access email with Outlook Web App.

Do you have any idea?

The Fileshare witness store on both Domain Controller.


Who is Participating?
Krzysztof PytkoSenior Active Directory EngineerCommented:
How the second DC is configured ? Is it also DNS server and Global Catalog ?
How did you configure NIC on that Domain Controller ?

Please also in the meantime on that server in command-line run:
dcdiag /e /c /v /f:c:\dcdiag.log

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repadmin /showrepl /all /verbose >c:\repadmin.log

Open in new window

and attach results here for analyze, please

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