KB2506143 Known Issue: Configuration Manager Management Points collocated with clients fail after installing Windows Management Framework 3.0 and running Client Health Evaluation

See this article for more information:

http://blogs.technet.com/b/configmgrteam/archive/2012/12/18/known-issue-configuration-manager-management-points-collocated-with-clients-fail.aspx

And here for resolution:
http://support.microsoft.com/kb/2796086