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LDAP error 81 (Server Down) Win32 Err 58

Repadmin /showreps *
Gives LDAP error 81 (Server Down) Win32 Err 58

This is probably referencing an old Windows Server 2008.

  1. How do I determine which server Repadmin is complaining about?

  2. If it is the old Windows Server 2008, how do I remove Windows Server 2008?

windows-server-2019
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FanFan-MSFT avatar image
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FanFan-MSFT answered

Hi,
For the error:
Repadmin /showreps *
Gives LDAP error 81 (Server Down) Win32 Err 58

I'm afraid it may be caused by the command,it's the same result in my DC too:
![110480-image.png][1]

Correct command should be:

Repadmin /showrepl
repadmin /showrepl
/csv >c:\repl.csv

About the warning: A warning event occurred. EventID: 0x00009016
If there are a CA server in your domain, you may try to enroll a ssl cert from the CA, if not you may ignore the error.
Best Regards,



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FanFan-MSFT answered

Hi,
Welcome to ask here!
The command: "repadmin /showreps *" will display the replication situation for all the DCs.
You will see all the inbound neighbors for each DCs.
Check the error happened for which DC.(Destination DC or Source DC)
If possible, you can share a screenshot here which includes the information. (Please hide the private information)

To remove the old DC which already demoted, we need to do this on other DC, for more details you can refer to the following link:
https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/ad-ds-metadata-cleanup

Best Regards,

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techcoor-9538 answered FanFan-MSFT commented

The Gives LDAP error 81 (Server Down) Win32 Err 58 is the only information that appears. It does not matter which DC is used. I am using Administrator: Command Prompt. I do not see any inbound neighbors for each DC.


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Hi,
Would you please tell how many DCs do you have?
Do you mean, it is the same result in the output for every DC?

Best Regards,

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techcoor-9538 answered FanFan-MSFT commented

3 DCs
Yes, same exact message on all 3 DCs

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It is suggested to run following command to get more details:
Dcdiag /v >c:\dcdiag1.log
Repadmin /showrepl >C:\repl.txt
Repadmin /syncall /APeD
ipconfig /all > C:\dc1.txt

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techcoor-9538 answered FanFan-MSFT commented

The problem with dcdiag is that it is cluttered with mostly
No suitable default server credential exists on this system. This will prevent server applications that expect to make use of the system default credentials from accepting SSL connections. An example of such an application is the directory server. Applications that manage their own credentials, such as the internet information server, are not affected by this.

      A warning event occurred.  EventID: 0x00009016


I think I need to clear the above nuisance first.

Repadmin /showrepl >C:\repl.txt only shows success
Repadmin /syncall /APeD shows no errors.

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Did you have ca server in your domain?

Best Regards,

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techcoor-9538 answered techcoor-9538 edited

repadmin /showrepl /csv >c:\repl.csv shows no failures.


The "No suitable default server credential exists on this system. " has been entered as a separate question. Will close this question.

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