Google is phasing out Silverlight support for its Chrome browser. In the near future Chrome will prevent Silverlight from running and will not recognize that Silverlight has been installed. We recommend that users access LabSim through an alternate browser, such as Microsoft Internet Explorer. If you are unable to use an alternate browser, there are some temporary work-arounds that will enable Silverlight for a period of time.
Click here to learn how to temporarily resolve the issue.