Cannot setup VPN (WMI failure?) - Server Essentials 2012 R2

Question

Hi,
Last week i setup a new Server Essentials 2012 R2 (fresh install). Everything apart from the Anywhere Access has sucessfully been setup and the server is in a production Environment.
When i try to configure Anywhere Access and setup VPN + RemoteDesktop , the wizard fails. VPN cannot be setup , retry.
Two Issues:
The VPN setup/configuration fails (Lets start with this one, could be related to second issue).
Remote Desktop setup is completed. However the "Remote Desktop Gateway" service cannot be started because the dependant service RPC/HTTP Load Balancing  cannot start.
Troubleshooting steps taken on the VPN setup Issue:
Restarting the server (multiple times)
Rerunning the wizard (multiple times)
Checking if the correct roles has been installed by Server Essentials
Checking log files dashboard.log (The error found)
Run sfc /scannow (errors found and corrected)
Run DISM (OK)
Tried to setup VPN manually using the RRAS GUI (Error: Installation of the Routing and Remote Access service failed because Class not registered 80040154)
Further I've concluded that the 1st (VPN) issue is probably casued by malfunctioning WMI
In the dashboard.log , when running the VPN setup an error can be found on one of the setup steps:
[6684] 140723.170909.2619: RemoteAccess: PS > RemoteAccess\Install-RemoteAccess -VpnType Vpn;
[3320] 140723.170910.1772: DomainManagerObjectModel: Calling KeepAlive for instanceID=1
[3320] 140723.170910.1772: DomainManagerObjectModel: KeepAlive succeeded for instanceID=1
[6684] 140723.170918.1943: RemoteAccess: PS Exception (catch and rethrow): System.Management.Automation.MethodInvocationException: Exception calling "EndProcessing" with "0" argument(s): "Object reference not set to an instance
of an object." ---> System.NullReferenceException: Object reference not set to an instance of an object.
To troubleshoot this further, i've run the PS command "Install-RemoteAccess -VpnType Vpn" manually. This gives me the following error which Points to a WMI issue
PS C:\Windows\system32> RemoteAccess\Install-RemoteAccess -VpnType Vpn
RemoteAccess\Install-RemoteAccess : Provider load failure
At line:1 char:1
+ RemoteAccess\Install-RemoteAccess -VpnType Vpn
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (PS_RemoteAccess:root/Microsoft/...PS_RemoteAccess) [Install-RemoteAccess]
   , CimException
    + FullyQualifiedErrorId : HRESULT 0x80041013,Install-RemoteAccess
Ran WMIdiag - Found errors. The most interesting error is found below
53059 22:43:35 (2) !! WARNING: WMI provider DCOM registrations missing for the following provider(s): ..................................... 3 WARNING(S)!
53060 22:43:35 (0) ** - ROOT/CIMV2/TERMINALSERVICES, AAGProvider ({75D15B16-228C-499F-A0FC-E4899AC870CE}) (i.e. WMI Class 'Win32_TSGatewayResourceGroup')
53061 22:43:35 (0) **   Provider DLL: ''
53062 22:43:35 (0) ** - ROOT/WEBADMINISTRATION, WebAdministrationProvider ({84951D16-922E-4692-B4E9-90DD80426ECF}) (i.e. WMI Class 'SiteContainsConfigurationSection')
53063 22:43:35 (0) **   Provider DLL: ''
53064 22:43:35 (0) ** - ROOT/MICROSOFT/WINDOWS/REMOTEACCESS/SERVER, RAServerPSProvider ({BEF7FC3B-203F-4AD6-B38E-A1F519202644})
53065 22:43:35 (0) **   Provider DLL: ''
The WMIDiag provider CSV shows that the RASERVERPSPROVIDER.DLL has no DCOM (WMI Provider Binary) registration. (see example below)
WMI Namespace
WMI Class name
WMI Provider Name
WMI Provider Model
WMI provider binary
WMI provider registration MOF file(s)
ROOT/MICROSOFT/WINDOWS/REMOTEACCESS/SERVER
PS_RemoteAccessLocal
RAServerPSProvider
No DCOM registry registration
No DCOM registry registration
C:\WINDOWS\SYSTEM32\WBEM\RASERVERPSPROVIDER.MOF
So I've tried to reregister the DLLs with regsvr32 RASERVERPSPROVIDER.DLL. I've also tried to recompile the MOFs (RASERVERPSPROVIDER.MOF). I found the missing DLL and MOF using WMIDiag on Another Server Essentials 2012 R2 machine. But no sucess - the WMI
Provider binaries and model are still missing..
Example from another (healty) 2012 R2 Essentials Server
WMI Namespace
WMI Class name
WMI Provider Name
WMI Provider Model
WMI provider binary
WMI provider registration MOF file(s)
ROOT/MICROSOFT/WINDOWS/REMOTEACCESS/SERVER
PS_RemoteAccessLocal
RAServerPSProvider
In-proc
C:\WINDOWS\SYSTEM32\WBEM\RASERVERPSPROVIDER.DLL
C:\WINDOWS\SYSTEM32\WBEM\RASERVERPSPROVIDER.MOF
Is there any other way to add the WMI provider binary manually? Or do you think I'm on the wrong track?
Thank you in advance.
Regards
Josef
Support Engineer
(MCP) Microsoft Certified Professional
(MCTS) Exchange Server 2010, Configuring
(CCNA) Cisco Certified Network Associate

Answer 1

Hi,
Here is a good blog to troubleshoot WMI issues.
WMI: Rebuilding the WMI Repository
http://blogs.technet.com/b/askperf/archive/2009/04/13/wmi-rebuilding-the-wmi-repository.aspx
First, I want to confirm if the good system is at the same hotfix/SP.
Re-register all of the dlls and recompile the .mofs in the wbem folder and re-registering WMI Service and Provider. Then verify the consistence of the repository.
If the issue persists, we can choose to rebuild the repository.
Hope this helps.