We had a fully functioning HP ALM/PC/PC Hosts setup. As mentioned we are on 11.52 Patch 1.

– HP ALM Server
– HP PC Server
– HP PC Host (C/DP)
– HP PC Host (LG)
– HP PC Host (LG)

After some Windows updates this weekend we are unable to run a performance test or open the run time settings for a test.

**—Run Time Settings error—**

Performance Center has encountered a fatal error
Object reference not set to an instance of an object.

Less details <<< at HP.PC.Web.UI.DownloadManager..ctor(String sessionId) at HP.PC.RTS.BL.RunTimeSettings..ctor(String sessionID, Int32 scriptId, String groupRTS, String groupRunLogic) at HP.PC.Web.UI.UserSite.RTS.RTSettings.get_RunTimeSettings() at HP.PC.Web.UI.UserSite.RTS.RTSettings.InitNavigationTree() at HP.PC.Web.UI.UserSite.RTS.RTSettings.Page_Load(Object sender, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at HP.PC.Web.UI.PageBase.OnLoad(EventArgs e) at System.Web.UI.Adapters.ControlAdapter.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Use case context : f4335e44-30b7-4515-8188-a7c7bfe8f755 **---Run Performance Test error---** In the "Test Runs > event log" I see the following:

– Load Test ‘zzzz Testing PCConnectivityTest’ failed (Run ID 1245).
– Run 1245 (Timeslot ID ‘2068’) changed state from Initializing to Run Failure.
– Run test failed. Reason: ‘The following host(s) are Non-Operational or Unavailable: S171AAWP0046 (Controller)’
– Replacing Controller: Failed to replace Controller: S171AAWP0046
– Run test failed. Reason: ‘Object reference not set to an instance of an object.’

**Notes:**

When I run a health check everything is successful. As I mentioned, everything was working fine last week. Does anyone have any suggestions? I have searched everywhere.