Active Directory replication failing with Access is Denied

Posted by Justin Love on Server Fault See other posts from Server Fault or by Justin Love
Published on 2010-04-19T19:56:58Z Indexed on 2010/04/19 20:03 UTC
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I recently discovered that Active Directory replication started failing about a month ago. If I attempt to Replicate Now from the failing domain controller, I receive The following error occurred during the attempt to synchronize the domain controllers: Access is denied.

It is between two servers at a remote site. One is Windows 2003 and the other is Windows 2000; the Windows 2000 machines is experiencing the errors. The domain is older OUR_DOMAIN style.

Attempts so far:

  • I disabled Kerberos service on the Windows 2000 server and restarted
  • RPC and RPC locater services have expected settings
  • HKEY_Local_Machine\Software\Microsoft\Rpc\ClientProtocols missing ncacn_nb_tcp on Windows 20003 server (added)
  • Portqry reports okay
  • Firewall disabled
  • netdom resetpwd (and reboot) on Windows 2000 server.

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