Windows – Group Policy Error Event ID 1030

After a Reboot of a Domain Controller Server 2008r2 I got many Errors Event ID 1030


And as well a Warning event LSA Event ID  40961 ?

The Security System could not establish a secured connection with the server ldap/xxx/xxx. No authentication protocol was available.

Diagnostics :

After reading on the net, I did several Diagnostics test:

dcdiag /v /c /d /e /s:%dcname% > c:\dcdiag.txt


repadmin /showrepl %dcname% /verbose /all /intersite >c:\repl.txt


May errors appear in there but did not ring a bell to me ?

I also did a machine Pwd reset on the domain controller that had the issue, but not success too Sad smile

The nltest.exe /dsregdns was OK but did not solve it to ??Baring teeth smile


Solution :

After trying all of the above did not help …

But simply restarting the AD Domain Services


It gave a few warnings but after that everything was back to normal.


Enjoy !


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