WSUS_Issues

##AH - AdilHindistan - 05/19/2014

ISSUE #1:
SERVER
Cannot Access WSUS Node in mmc:

Causes:
1) Network Services lose access to WSUS Content directory
 * Fix by restoring permissions 

2) MMC cache is corrupted 
del C:\Users\%username%\AppData\Roaming\Microsoft\MMC\*.* /q

3) Private Memory is not enough on AppPool(?)

Event ID: 7053
NullReferenceException -- Object reference not set to an instance of an object.

Other events: 
WsusPool have 5-6 recycle requests in eventviewer and then stops due to multiple errors.


Remove Private Memory recycle on WsusPool

Remove Private Memory Limit by setting it to 0
Application Pools > WsusPool > Private Memory Limit (KB) & recycle pool

Why is this stopping WsusPool?
Setting: Application Pools > WsusPool > Rapid-Fail Protection > Failure Interval (mins)=5 && Maximum Failures =5 


## http://stackoverflow.com/questions/11187304/how-to-set-iis-applicationpool-private-memory-limit-value-using-powershell
import-module webadministration

$applicationPoolsPath = "/system.applicationHost/applicationPools"
$applicationPools = Get-WebConfiguration $applicationPoolsPath

foreach ($appPool in $applicationPools.Collection)
{
    $appPoolPath = "$applicationPoolsPath/add[@name='$($appPool.Name)']"
    Get-WebConfiguration "$appPoolPath/recycling/periodicRestart/@privateMemory" 
    # Set-WebConfiguration "$appPoolPath/recycling/periodicRestart/@privateMemory" -Value 1000
}


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ISSUE #2
Client

Computer does not report to WSUS console
wuauclt /detectnow -> Can not perform non-interactive scan if AU is interactive-only (in Windows\Windowsupdate.log)

Reason: A GPO had incorrect settings causing the issue: 
Computer Configuration > Administrative Templates > Windows Components > Windows Update > Configure Automatic Updates = Disabled