[2014-12-31 17:40:26.724] Log (Exception,High): System.Net.Http.HttpRequestException: SR.net_http_client_execution_error ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at Telerik.BlackDragon.Client.ServerClient.HttpClientHandlerBase.GetResponseCallback(IAsyncResult ar) --- End of inner exception stack trace --- Server stack trace: Exception rethrown at [0]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at Telerik.BlackDragon.Client.ServerClient.ProxyAuthenticatingHttpClientHandlerBase.d__0.MoveNext() Exception rethrown at [1]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at Telerik.BlackDragon.Client.ServerClient.HttpServiceContext.TimeoutHandler.d__1b.MoveNext() Exception rethrown at [2]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at Telerik.BlackDragon.Client.ServerClient.HttpServiceContext.d__11.MoveNext() Exception rethrown at [3]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at OperationExecutorExtensions.d__11`1.MoveNext() Exception rethrown at [4]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at OperationExecutorExtensions.d__1f`2.MoveNext() Exception rethrown at [5]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at Telerik.BlackDragon.Client.Services.Implementation.RemoteBuildService.d__4.MoveNext()