NTDS KCC Event ID 1265, Repadmin failure 1722 (0x6ba)

J

jwgoerlich

We have four domain controllers in a single forest, single site
configuration. Two domain controllers are in the root domain, the
remaining two are in a child domain. All users and resources are in
the child domain. All domain controllers are Win2000 AS SP4, and the
domain is at the Native Win2000 level.

Dc4, a domain controller in the child domain, failed. Unable to
restore from backups, we rebuilt the domain controller. The name
stayed the same (dc4). All services appear to be working, users can
logon and machines can authenticate.

The domain controllers in the root domain are now getting KCC Event ID
1265 errors (see below). The problem appears to be that the servers
are unable to replicate due to DNS. However, both servers can resolve
Dc4.childdom.rootdom.com.

I run Repadmin /showall on the root domain controllers (see below). It
shows two connections to Dc4. Each connection has a separate GUID. I
think that the first is from before the crash and is the one causing
the KCC errors. This GUID is b952ba5d-9e68-48bc-92b9-979c84947d7b.

I would like to remove this faulty GUID for Dc4. I try to delete it
using Repadmin (again, see below). Repadmin cannot remove the entry,
though. The resulting error is 1722 (0x6ba): The RPC server is
unavailable. This makes sense because the entry is unavailable in the
sense that it no longer exists.

I must resolve these KCC errors. The only way I can see is to forcibly
delete the Dc4 GUID. Any suggestions?

Thanks in advance,

J Wolfgang Goerlich


--------------------[ NTDS KCC Events ] --------------------

Event Type: Warning
Event Source: NTDS KCC
Event Category: Knowledge Consistency Checker
Event ID: 1265
Computer: DC1
Description: The attempt to establish a replication link with
parameters

Partition: DC=childdom,DC=rootdom,DC=com
Source DSA DN: CN="NTDS Settings
CNF:b952ba5d-9e68-48bc-92b9-979c84947d7b",CN=DC4,CN=Servers,CN=One-Site,CN=Sites,CN=Configuration,DC=rootdom,DC=com
Source DSA Address:
b952ba5d-9e68-48bc-92b9-979c84947d7b._msdcs.rootdom.com
Inter-site Transport (if any):

failed with the following status:

The DSA operation is unable to proceed because of a DNS lookup
failure.

The record data is the status code. This operation will be retried.

--------------------[ Repadmin /showreps ] --------------------

==== OUTBOUND NEIGHBORS FOR CHANGE NOTIFICATIONS ============

CN=Schema,CN=Configuration,DC=rootdom,DC=com
One-Site\DC4 via RPC
objectGuid: b952ba5d-9e68-48bc-92b9-979c84947d7b
One-Site\DC2 via RPC
objectGuid: d93c0e22-e966-4fa1-a16b-720702f6745b
One-Site\DC3 via RPC
objectGuid: 402f6850-b8e9-4d9b-a4fc-6b249f72845b
One-Site\DC4 via RPC
objectGuid: dab88ddd-5cd2-4c4d-8a94-f5ec3f9cdedf

CN=Configuration,DC=rootdom,DC=com
One-Site\DC4 via RPC
objectGuid: b952ba5d-9e68-48bc-92b9-979c84947d7b
One-Site\DC2 via RPC
objectGuid: d93c0e22-e966-4fa1-a16b-720702f6745b
One-Site\DC3 via RPC
objectGuid: 402f6850-b8e9-4d9b-a4fc-6b249f72845b
One-Site\DC4 via RPC
objectGuid: dab88ddd-5cd2-4c4d-8a94-f5ec3f9cdedf

DC=rootdom,DC=com
One-Site\DC2 via RPC
objectGuid: d93c0e22-e966-4fa1-a16b-720702f6745b
One-Site\DC3 via RPC
objectGuid: 402f6850-b8e9-4d9b-a4fc-6b249f72845b

--------------------[ Repadmin /delete] --------------------

C:\Program Files\Support Tools>repadmin /delete
DC=childdom,DC=rootdom,DC=com
One-Site\DC4 b952ba5d-9e68-48bc-92b9-979c84947d7b
DsBindWithCred to One-Site\DC4 failed with status 1722 (0x6ba):
The RPC server is unavailable.
 
J

jwgoerlich

Thank you, Tomasz. I am working thru the eventid.net suggestions. When
trying to remove the link using Repadmin, I am unable to. The
resulting error is 1722 (0x6ba): The RPC server is unavailable. Any
ideas?

J Wolfgang Goerlich
 
J

jwgoerlich

Hello group,

I continue to be plagued with these NTDS KCC events. Can anyone help?

J Wolfgang Goerlich
 

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