The load test attached works just fine as long as the test is not data bounded. The log indicates an issue (provided below) but the fiddler trace show the data coming from the .csv file. Please refer to the files attached containing fiddler traces, the load test and the csv file. Situation: Exception during HTTP Request, url [https://perf-30.billeriq.com/apps/CustomerEnrollment/Enroll.aspx] Outer Exception Type: System.InvalidOperationException Message: Unable to find databound item in text returned from server. Check that the capture is not stale. FAULT USER. HRESULT: 0x80131509 (Official ID (if app.) = COR_E_INVALIDOPERATION, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5385) Call Stack: at Telerik.TestStudio.Load.Http.HttpLoadPlugin_Agent_HtmlTextWalkerContentBinding.Read(HttpResponseBuilder response, Object objTransformedContent) at Telerik.TestStudio.Load.Http.OutstandingRequest.TransformContentForBindings(String strContentType, HttpResponseBuilder responseBuilder) at Telerik.TestStudio.Load.Http.OutstandingRequest.<Run>d__0.MoveNext()