DCDIAG results after "incorrect target principal" errors

[Michael Leone]

PS P:\software\PHA Scripts> Get-ADDomainController -Filter * | Format-Table Name, IsGlobalCatalog

Name      IsGlobalCatalog
----      ---------------
DC1WRK016            True
DC2WRK017            True

PS P:\software\PHA Scripts> Get-Service -Name Netlogon

Status   Name               DisplayName
------   ----               -----------
Stopped  Netlogon           Netlogon

So I started it ...

So after my nightmare this morning, I ran a DCDIAG on that problem DC. And it had this to say for itself:

dcdiag /c /v /f:2026-03-16-dcdiag_report.TXT

Everything passed, except SysemLog (which I expected, what with all the errors from before),.

So I *guess* I am OK??

I have no kisses access SYSVOL, DCDIAG is clean, replication is fine and ongoing ...

[Philip Elder]

Does GPMC show green for the replication test?

 

Philip Elder MCTS

Senior Technical Architect

Microsoft High Availability MVP

MPECS Inc.

E-mail: Phili...@MPECSInc.Ca

Phone: +1 (780) 458-2028

Web: www.MPECSInc.Com

Blog: Blog.MPECSInc.Com  

Twitter: Twitter.com/MPECSInc

 

Please note: Although we may sometimes respond to email, text and phone calls instantly at all hours of the day, our regular business hours are 8:00 AM - 5:00 PM, Monday thru Friday.

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[Mike Leone]

On Mon, Mar 16, 2026 at 4:11 PM Philip Elder <Phili...@mpecsinc.ca> wrote:

Does GPMC show green for the replication test?

You mean this, in the GPMC console:

I'm not sure why I have both red and green, or which DC is which ...

 

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[Philip Elder]

That’s the one.

 

It will flag anything out of sorts with your replication setup.

 

Philip Elder MCTS

Senior Technical Architect

Microsoft High Availability MVP

MPECS Inc.

E-mail: Phili...@MPECSInc.Ca

Phone: +1 (780) 458-2028

Web: www.MPECSInc.Com

Blog: Blog.MPECSInc.Com  

Twitter: Twitter.com/MPECSInc

 

Please note: Although we may sometimes respond to email, text and phone calls instantly at all hours of the day, our regular business hours are 8:00 AM - 5:00 PM, Monday thru Friday.

 

 

From: ntsys...@googlegroups.com <ntsys...@googlegroups.com> On Behalf Of Mike Leone
Sent: Monday, March 16, 2026 14:44
To: ntsys...@googlegroups.com
Subject: Re: [ntsysadmin] DCDIAG results after "incorrect target principal" errors

 

On Mon, Mar 16, 2026 at 4:11 PM Philip Elder <Phili...@mpecsinc.ca> wrote:

Does GPMC show green for the replication test?

 

You mean this, in the GPMC console:

 

To view this discussion visit https://groups.google.com/d/msgid/ntsysadmin/CAHBr%2B%2BgzpDq94ZArKTiTPpViVgxLShBCdvKkayfqc0EsZtEBOA%40mail.gmail.com.