SChannel Errors on SCOM Agent

Hi again!   If you`re setting up a new agent/ Gateway installation which cannot communicate with the Management Server it`s always a good idea to also check the System Event Log and check for SChannel errors like:   Event ID: 36874- TLS 1.2 connection request was received from a remote client application, but none of…

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Instance Summary 2008 Dashboard crash

Hi again! This is an issue that affects the Instance Summary 2008 dashboard from the SQL MP with SCOM 2012 RTM and SP1 environments regardless of UR. Basically when the dashboard should load, it crashes the whole SCOM console. Also check the OperationsManager Event Log for following entries: Application: Microsoft.EnterpriseManagement.Monitoring.Console.exeFramework Version: v4.0.30319Description: The process was…

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WMI leak on Windows Server 2012 R2

There is a WMI leak on  windows server 2012 r2 DCs which renders them not so usable, generating SCOM agent scripts to fail. Multiple scripts are affected by this for example:AD CPU Overload Script Based Test Failed to complete: The script AD LSASS CPU failed to retrieve the raw performance data for the lsass process via WMI.The…

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Event ID 21023 on the Management Server and no configuration getting distributed

Hi, today I wanted to explain the following error: OpsMgr Management Configuration Service failed to execute 'SnapshotSynchronization' engine work item due to the following exception Microsoft.EnterpriseManagement.ManagementConfiguration.DataAccessLayer.DataAccessException: Data access operation failed   at Microsoft.EnterpriseManagement.ManagementConfiguration.DataAccessLayer.DataAccessOperation.ExecuteSynchronously(Int32 timeoutSeconds, WaitHandle stopWaitHandle)   at Microsoft.EnterpriseManagement.ManagementConfiguration.CmdbOperations.CmdbDataProvider.GetConfigurationSnapshotNextBatch(SnapshotProcessWatermark watermark)   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.TracingConfigurationDataProvider.GetConfigurationSnapshotNextBatch(SnapshotProcessWatermark watermark)   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.SnapshotSynchronizationWorkItem.TransferData(SnapshotProcessWatermark initialWatermark)   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.SnapshotSynchronizationWorkItem.ExecuteSharedWorkItem()   at Microsoft.EnterpriseManagement.ManagementConfiguration.Interop.SharedWorkItem.ExecuteWorkItem()   at Microsoft.EnterpriseManagement.ManagementConfiguration.Interop.ConfigServiceEngineWorkItem.Execute()———————————–System.InvalidCastException: Specified cast is not valid.  …

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[OMS] Portal issues – HTTP Error 400

Hi, Sometimes the OMS portal seems to have various issues, so I will write about some that I encounter. For example “HTTP Error 400. The size of the request headers is too long” Usually this error happens if there is a corruption in the browser cache or cookies.   What to try which usually solves…

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System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary

This is an interesting stack: Detected malicious verification code when verifying element of type Microsoft.EnterpriseManagement.Configuration.ManagementPackRule with inner exception: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary. at System.Collections.Generic.Dictionary`2.get_Item(TKey key) at Microsoft.EnterpriseManagement.Configuration.ManagementPackRule.VerifyDataTypes(Dictionary`2 moduletypes) at Microsoft.EnterpriseManagement.Configuration.ManagementPackRule.Verify(VerificationContext context) at Microsoft.EnterpriseManagement.Configuration.Verification.VerificationEngine.VerifyCollectionItems(Object context) : Detected malicious verification code when verifying element of type Microsoft.EnterpriseManagement.Configuration.ManagementPackRule with inner exception: System.Collections.Generic.KeyNotFoundException:…

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monitoring KMS 2012 with SCOM 2012

Hi all, as you have probably seen, there is no new KMS MP for KMS 2012 and SCOM 2012. The old one is only for KMS 2008 monitoring and SCOM 2007. Since SCOM 2012 can read 2007 MP schemas, the MP can be used also with SCOM 2012. However the discovery will take place only…

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self signed certificates with SCOM- GW/Agents -no PKI

Hi all, I`ve saw some posts about this topic, however none of them really tell you how to achieve this behavior or if it even really works. So I`ve made a lab scenario where I wanted to set up my authentication not via Kerberos, but via certificates however without a PKI. This can be done by generating your…

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SDK service cannot be started anymore

If following events get logged into the Operations Manager Event Log: 26325 An authorization store exception was thrown in the System Center Data Access service. Exception message: Unable to perform the operation because of authorization store errors. 29181OpsMgr Management Configuration Service failed to execute 'AgentAssignment' engine work item due to the following exception System.ServiceModel.FaultException`1[Microsoft.EnterpriseManagement.Common.UnknownAuthorizationStoreException]: The…

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event id 20057 on scom agent

Getting Event ID: 20057 on the SCOM Agents? sporadically or not? afterwards the agents get a heartbeat failed?   Description: Failed to initialize security context for target MSOMHSvc/<Agent Server Name> The error returned is 0×80090342(The encryption type requested is not supported by the KDC.). This error can apply to either the Kerberos or the SChannel…

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