I have recently removed a Windows Server 2000 (Primary) Domain Controller from our network and it's replacement (a Win2k8) server has been complaining that it can't communicate with the old server ever since I shut it down. It didn't complain when I demoted it and removed it from the domain, only when I shut it down.
The error message I am seeing every 20mins or so on the Win2k8 DC.
06 Sep 2010 11:40:12 AM
Computer: [New Win2k8 DC]
Monitor: [Event Log Monitor]
* Event Time: 06 Sep 2010 10:55:33 AM
* Source: DCOM
* Event Log: System
* Type: Error Event
* Event ID: 10009
* DCOM was unable to communicate with the computer [Old Win2k DC] using any of the configured protocols.