I am getting this error more frequently during application start up in modeller... Mendix.M2EE.M2EEException: Request <{"action":"start","params":{}}> failed: ---> System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly. at System.Net.HttpWebRequest.GetResponse() at Mendix.M2EE.M2EERequest.DoHttpRequest(String json, Int32 timeout) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERequest.cs:line 168 --- End of inner exception stack trace --- at Mendix.M2EE.M2EERequest.DoHttpRequest(String json, Int32 timeout) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERequest.cs:line 181 at Mendix.M2EE.M2EERequest.Execute(Int32 timeout) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERequest.cs:line 62 at Mendix.M2EE.M2EEClient.Start() in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EEClient.cs:line 291 at Mendix.M2EE.M2EERuntimeControl.StartRuntime(M2EEClient client, Boolean askToSyncDb) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERuntimeControl.cs:line 196 at Mendix.M2EE.M2EERuntimeControl.<>cDisplayClassd.<performstartup>ba(M2EEClient client) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERuntimeControl.cs:line 180 at Mendix.M2EE.M2EERuntimeControl.ClientDo(Action`1 action) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERuntimeControl.cs:line 322 at Mendix.M2EE.M2EERuntimeControl.<>cDisplayClassd.<performstartup>b9() in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.M2EE\M2EERuntimeControl.cs:line 150 at Mendix.Modeler.Utility.Progress.ProgressUtil.<>cDisplayClass1.<do>b0(ProgressInfo info) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.Modeler.Utility.Gui\Progress\ProgressUtil.cs:line 13 at Mendix.Modeler.Utility.Progress.Step.Run(ProgressInfo info) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.Modeler.Utility.Gui\Progress\Step.cs:line 22 at Mendix.Modeler.Utility.Progress.Process.worker_DoWork(Object sender, DoWorkEventArgs e) in c:\cygwin\home\autobuild\build\Mendix-4\modeler\Mendix.Modeler.Utility.Gui\Progress\Process.cs:line 91 at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) Could anyone please throw some light on it?