Exchange 2010 is still looking for Demoted Domain Controller
When I was checking events today at one of our customers I mentioned one weird event. It was:
Event 2070
Process MSExchangeMailboxReplication.exe () (PID=1388). Exchange Active Directory Provider lost contact with domain controller OLD_DC_NAME. Error was 0x51 (ServerDown) (Active directory response: The LDAP server is unavailable.). Exchange Active Directory Provider will attempt to reconnect with this domain controller when it is reachable.
I’ve checked SRV and A records in DNS. I’ve checked Meta Data in Active Directory Domain for OLD_DC_NAME records. I also checked Active Directory Domain for any records for OLD_DC_NAME using ADSI Edit utility. I found nothing so I started to thought it’s kinda hard-coded into Exchange. But I didn’t want to believe it.
Then I started to look for some path or any kind of help on Microsoft website and I found one interesting article http://support.microsoft.com/kb/2019500. It says to delete cached MMC console settings for EMC and all weird events dissapeared.
What I well designed and prepared MMC caching mechanism 🙂
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