The RPC server is unavailable (Exception from HRESULT: 0x800706BA). Tricky, what to do?

Hi;

I have an standalone classified enterprise .NET application which I receive this error:

The RPC server is unavailable (Exception from HRESULT: 0x800706BA)

The attached document is the WMI log result, and i don't see where the problem is. Any help?
http://technet.microsoft.com/en-us/library/ff404265.aspx

I cannot share the application name though.

Regards.
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jazzIIIloveAsked:
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MaheshArchitectCommented:
RPC server errors are caused due to DNS lookup failures \ AD port blockages \ non existent dns server IP addresses \ issues with AD replication \ stale domain controller entries
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sbaughanCommented:
Check that your firewall allows for communication on TCP port 135. Otherwise, open that port for %SystemRoot%\system32\svchost.exe through GPO.
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sbaughanCommented:
Also, for Asynchronous WMI traffic:
All ports open for %systemroot%\system32\wbem\unsecapp.exe
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jazzIIIloveAuthor Commented:
What about that TestServer Manager?
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Gerwin Jansen, EE MVETopic Advisor Commented:
You did not attach the WMI log result document.
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jazzIIIloveAuthor Commented:
Oh, sorry

You can search test and error in the attached file.

regards.
WMIDIAG-V2.1-WIN7-.CLI.SP1.64-VIRW760-20
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Gerwin Jansen, EE MVETopic Advisor Commented:
There are a lot of errors in there, this one a few times:

!! ERROR: (CheckWMIFeatures) : 0x80041002 - (WBEM_E_NOT_FOUND) Object cannot be found.

Can't suggest much as an expert here but to look at the KB article: http://support.microsoft.com/kb/2465990 and to run the system file checker: sfc /scannow
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