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I am attempting to monitor windows server 2008 r2 x64 Enterprise with Nagios.

When I test/install the nsclientI get the following error:

PDHCollector.cpp(215) Failed to query performance counters: \Processor(_total)\% Processor Time: PdhGetFormattedCounterValue failed: A counter with a negative denominator value was detected.   (800007D6)

Has anyone else encountered the same issue and / or resolved it, found a work around?

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1 Answer 1

This appears to be an issue with Windows WBEM corruption. Take a look at this conversation thread that recommends The wbem repository: http://www.nsclient.org/nscp/discussion/message/2434

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