Operations Manager OpsMgr Connector error [event ID21006

Question

Hello,
Our office is currently successfully running SCE 2007 SP1 on one system (NEWSCE) however it had been installed previously on a different server (OLDSCE). It would appear that the previous admin had successfully uninstalled the old server and had it successfully removed from the AD however on all of our servers (and some clients) I am seeing the following OpsMgr Connector error.
Event Type: Error
Event Source: OpsMgr Connector
Event Category: None
Event ID: 21006
Date:  2/17/2009
Time:  1:21:36 PM
User:  N/A
Computer: CRITICAL_SERVER
Description:
The OpsMgr Connector could not connect to OLDSCE.domain.com:5723.  The error code is 10061L(No connection could be made because the target machine actively refused it.
).  Please verify there is network connectivity, the server is running and has registered it's listening port, and there are no firewalls blocking traffic to the destination.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
This error seems to relate to the fact that I have two copies of MonitoringHost.exe resident in memory and when I look in the registry for OLDSCE I find there are two registry key entires for management groups for OLDSCE_MG and NEWSCE_MG
HKLM\SOFTWARE\Microsoft\Microsoft Operations Manager\3.0\Agent Management Groups\
My question is this:
Can I simply delete the registy key for the OLDSCE_MG managment group and be done with this issue or is there more to it?
Thanks,

Answer 1

Hi , how to delete in registers readily . What is the result ?
the result ?