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I have a ton of DCOM 10009 errors... should I be worried?

Posted on 2015-01-16
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Last Modified: 2015-01-29
I have a ton of DCOM 10009 errors on our SBS 2008 server... should I be worried?

There are like dozens... maybe hundreds per hour.  It seems lots of them seconds apart for the same system.

I clicked on a bunch and many of the systems are old systems that are long gone... is there an easy way I can just tell the domain to stop trying to contact computers that have not been on the network in months or years?

I did eventually find one that was still on the network.   The PC is actually windows XP.  (I know... we are replacing them soon).

So I am curious if maybe the problem is actually that it is winxp and xp is EOL so the server no longer supports talking with it on DCOM...

If it's not apparently I know little about windows.  Can anyone help point me in the right direction here?  Should I be alarmed?  Is there some easy way I can mitigate the meaningless errors about not finding PC's that have not been around for over a year?
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Question by:Xetroximyn
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by:VB ITS
VB ITS earned 250 total points
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Just remove the entries in DNS for the old systems that are referenced in the errors. Also check in Active Directory Users and Computers for the computer objects and remove them if you're 100% sure they no longer exist (look in the MyBusiness\Computers\SBSComputers OU).

As for the errors on the XP machine that's still on the network, have a look at this article which can help you troubleshoot the DCOM issues: http://blogs.msdn.com/b/asiatech/archive/2010/03/16/how-to-troubleshoot-dcom-10009-error-logged-in-system-event.aspx
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by:awawada
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Explanation

Your network connections might not be configured properly.

User Action

Check your network connections. After check the registry entry HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Rpc/DCOM_Protocols for the list of Remote Procedure Call (RPC) service protocol sequences.
 
Source:
http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Windows%20Operating%20System&ProdVer=5.0&EvtID=10009&EvtSrc=DCOM&LCID=1033

They are so many causes for this error. Also read here:
http://www.eventid.net/display-eventid-10009-source-DCOM-eventno-579-phase-1.htm
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by:WORKS2011
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I clicked on a bunch and many of the systems are old systems that are long gone...
it's likely they're old computer accounts in AD, if so delete. The no longer used SID can create DCOM errors.  

Flush DNS (ipconfig /flushdns) but it's likely a computer account in AD.
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by:Xetroximyn
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Thanks for the responses... I have been very busy and have not had a chance to look into this in detail yet.  

Two quick questions...

1. Do you think the errors are alarming?  Or most likely innocuous and I can just get to it, when I get to it... (I understand no guarantees... just asking for gut feeling here)

2. Is there any more efficient way of deleting old machines that finding them one by one and manually deleting them out of active directory users and computers manually?   I mean we are a small business so I could do this in a matter of hours maybe... but what do huge companies do?  I can't imagine they manually remove every old PC that goes dead...
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by:VB ITS
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1. Do you think the errors are alarming?  Or most likely innocuous and I can just get to it, when I get to it... (I understand no guarantees... just asking for gut feeling here)
The errors aren't generally cause for alarm.
2. Is there any more efficient way of deleting old machines that finding them one by one and manually deleting them out of active directory users and computers manually?   I mean we are a small business so I could do this in a matter of hours maybe... but what do huge companies do?  I can't imagine they manually remove every old PC that goes dead...
Most admins use either custom scripts or third-party tools (free or paid) to clean up old computer objects in AD.
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by:Xetroximyn
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Thanks!  Any suggestions or any good free or paid 3rd party tools for this?
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I personally use AD Tidy which you can find here: http://www.cjwdev.com/Software/ADTidy/Info.html

Give the free version a shot and if you think you like it go with the paid version, it'll be money well spent :)
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Author Closing Comment

by:Xetroximyn
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Thanks all!
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