The status of the client update component on this server
Knowledge Base article:
Citrix
®
Management Pack
Summary
This monitor is the rollup monitor for all availability monitoring of the automatic client update component of a computer running Citrix Presentation Server. If the state is unknown, either monitoring has not begun for this server or there are no monitors defined that monitor client update availability.
 
Causes
An unhealthy state for this monitor indicates some problem with another monitor monitoring the state of the client update component. To view all current alerts from the client update component on the Citrix Presentation Server managed computer, use this link:
Use the Health Explorer to find the cause of the unhealthy state. Use the Knowledge Base article about the specific monitor causing the issue to troubleshoot and fix the problem.