There are three database agents that are repeatedly firing “Credential Management Event” alarms “Cannot establish connection ” which get cleared out automatically and then refire a few minutes later:
Cannot establish connection to MYSERVER: received HTTP/401 - credentials rejected and Cannot establish connection to MYSERVER: Invalid Namespace (0x8004100e) while connecting as MYDOMAIN/MYUSER.
The specified namespace root/mscluster does not appear on this server [Caused by: Invoke of: ConnectServer
Source: SWbemLocator Description: Invalid namespace ]
The error indicates that the server is classified as a cluster node, yet the WMI MSCluster Namespace does not exist. Without this namespace, you will not be able to query the cluster resources via WMI to gather information. This issue can usually be fixed by registering the missing DLL and MOF file.
Register the DLL and MOF files using the following commands.
regsvr32 -s C:\Windows\System32\wbem\ClusWMI.dll
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