Re: Replication errors: GUIDs are incorrect!

Tech-Archive recommends: Fix windows errors by optimizing your registry

You can't get a different GUID from doing a restore. Did somebody just go
ahead and do a rebuild on this dc without first properly removing from the
domain via dcpromo, because that is sure what it sounds like. Just because
you don't know what happened doesn't mean you can't start inquiring,
somebody must know. How many domain admins do you have?

I would consider doing a dcpromo (demotion on this dc) and once complete go
into ntdsutil and examine the dc's defined within the domain and cleanup
anything that is still remaining. Once cleaned up, go back and do your
promotion.

http://support.microsoft.com/?id=216498

Once you have things cleaned up I would run the following

Run dcdiag, netdiag and repadmin in verbose mode.
-> DCDIAG /V /C /D /E /s:yourdcname > c:\dcdiag.log
-> netdiag.exe /v > c:\netdiag.log (On each dc)
-> repadmin.exe /showrepl dc* /verbose /all /intersite > c:\repl.txt
-> dnslint /ad /s "ip address of your dc"

--
Paul Bergson
MVP - Directory Services
MCT, MCSE, MCSA, Security+, BS CSci
2003, 2000 (Early Achiever), NT

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup
This posting is provided "AS IS" with no warranties, and confers no rights.

"FatBoy" <trin.yuthasastrakosol@xxxxxxxxx> wrote in message
news:9567afa4-8e39-4518-825e-9b65abf88607@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
We are experiencing replication issues between 2 DCs. When I run
repadmin /syncall, I get the following output

CALLBACK MESSAGE: Error contacting server c512bab8-fc7f-44db-
bc5a-55e64d458e92._msdcs.contoso.com (network error): 1722 (0x6ba):
The RPC server is unavailable.
CALLBACK MESSAGE: The following replication is in progress:
From: 90f2dc40-ea2e-4fcc-9573-26afcdf9b7a3._msdcs.contoso.com
To : e96317a8-d920-44fa-b109-a0f1d52bf138._msdcs.contoso.com
CALLBACK MESSAGE: The following replication completed successfully:
From: 90f2dc40-ea2e-4fcc-9573-26afcdf9b7a3._msdcs.contoso.com
To : e96317a8-d920-44fa-b109-a0f1d52bf138._msdcs.contoso.com
CALLBACK MESSAGE: SyncAll Finished.

SyncAll reported the following errors:
Error contacting server c512bab8-fc7f-44db-
bc5a-55e64d458e92._msdcs.contoso.com (network error): 1722 (0x6ba):
The RPC server is unavailable.showreps

Running repadmin /showreps, I see that the this is pointing to a
server DC01. Looking in DNS, I see a CNAME entry for DC01 as 9f537506-
d5be-40c2-8c1b-0c69dd19bdc9._msdcs.contoso.com
Clearly, the GUIDS are different. Apparently, there had been some AD
corruption a few weeks ago and it had been restored. How that process
had been implemented, I have no knowledge as I was not involved.

1 - I think the old GUID before the restore was c512bab8-fc7f-44db-
bc5a-55e64d458e92, the new one is 9f537506-
d5be-40c2-8c1b-0c69dd19bdc9, how do I modify so that it looks for the
new GUID and not the old?
2 - Can I add another CNAME DNS entry of c512bab8-fc7f-44db-
bc5a-55e64d458e92._msdcs.contoso.com pointing to DC01?
3 - Actually, I had already tried #2, and when I performed a repadmin /
syncall I got this error:
Last attempt @ 2007-12-02 20:54:53 was successful.
Seattle\DC01 via RPC
DC object GUID: c512bab8-fc7f-44db-bc5a-55e64d458e92
Last attempt @ 2007-12-02 20:54:53 failed, result 1396 (0x574):
Logon Failure: The target account name is incorrect.
672 consecutive failure(s).
Last success @ 2007-11-05 08:23:19.

I think the solution lies with ADSIEdit, but I wanted to check with
the AD geniuses on here to see if I am on the right track (and if they
can tell me what I need to modify with ADSIEdit).

Thanks!


.

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