Domain Controller Server 2008R2 had Endpoint software installed for a long while and it was recently rebooted. After reboot Exchange 2013 is not able to authenticate users.
Endpoint software was removed from Domain Controller and all works fine.
I have added some Windows folder Exclusions (as recommended by Microsoft) in On-access scanning for that DC, reinstalled Endpoint client, but still the same problem persists.
Any ideas? What else can I exclude or check, uncheck to resolve this issue.
Thank you
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