Microsoft has just updated the following KB Article:
Configuration Manager management points fail after they install Windows Management Framework 3.0 and run Client Health Evaluation
Symptoms
System Center 2012 Configuration Manager management points that are collocated with the client fail daily by returning HTTP 500 errors to calling clients. This problem occurs after the Client Health Evaluation task runs and reinstalls the client. In this situation, the CCMEval.log shows entries that resemble the following:
Loading manifest file: C:\Program Files\SMS_CCM\CcmEval.xml
Successfully loaded ccmeval manifest file.
Begin evaluating client health rules.
Successfully retrieved all client health checks.
Evaluating health check rule {4AB7D77D-3BB0-4EAB-BEFD-7C0F7DA10296} : Verify WMI service exists.
Evaluating health check rule {518C0699-03F8-4F38-85C4-4D319EAEFC05} : Verify/Remediate WMI service startup type.
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