SCOM 2007 R2: Event ID: 29106 "Failed to connect to an IPC Port: Access is denied"

Cause
=========
This can occur if the OpsMgr SDK Service and the OpsMgr Config Service are running under different credentials.

Resolution
===========
Make Sure the OpsMgr SDK Service and OpsMgr Config Service are configured to run using the same credentials.

Please refer the KB http://support.microsoft.com/kb/936220  for How to change the credentials for the OpsMgr SDK Service and for the OpsMgr Config Service in Microsoft System Center Operations Manager 2007. 

Error in the following order: 12052, 12042, 12022, 12032, 12012, 12002, 13042.

Symptom:
==========
When browsing through the event viewer logs on your Windows Update Services server, you notice the following Event IDs with a Level of Error in the following order: 12052, 12042, 12022, 12032, 12012, 12002, 13042.

Additionally, you can recreate these events by running the following command: wsusutil.exe checkhealth

Solution:
=========
Reconfigure the WSUS server via the wsusutil.exe command.
1.    Login to the WSUS server
2.    Open up a command prompt with Administrative rights

3.    Navigate to the Update Services\Tools directory.
       By default you can find it on your C drive by executing the following command
       cd “c:\Program Files\Update Services\Tools”

4.    Execute one of the following commands
       If updates are configured for port 80 execute this command
       wsusutil.exe usecustomwebsite false
       If updates are configured for port 8530 execute this command
      wsusutil.exe usecustomwebsite true
   
5.    Execute the following command to verify the WSUS service is running correctly
       wsusutil.exe checkhealth

6.    You should see Event ID 10000 in event viewer confirming all is well

WsusPool continues to randomly stop in IIS causing updates to fail.

Cause
=====
Default Memory Limit of WsusPool too low causing the application pool to stop.
 
Resolution
==========
• Opened IIS
• Selected the WsusPool
• Right clicked it and selected Advanced Settings
• Changed  Private Memory Limit from 1843200 to 4194304