If a website sends a cookie containing data like "value=en-US,version=0.0.02" it causes all users to Fault. The log file shows this error: [04/19 15:27:52,Telerik.TestStudio.Services.exe(3176:119),Error] OutstandingRequest.Run() : EXCEPTION! (see below) Situation: Exception during HTTP Request, url [http://pa.qa.archivecloud.net/] Outer Exception Type: System.Net.CookieException Message: The 'Value'='value=en-US,version=0.0.02' part of the cookie is invalid. HRESULT: 0x80131537 (Official ID (if app.) = COR_E_FORMAT, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5431) Call Stack: at System.Net.Cookie.VerifySetDefaults(CookieVariant variant, Uri uri, Boolean isLocalDomain, String localDomain, Boolean set_default, Boolean isThrow) at System.Net.CookieContainer.Add(Cookie cookie) at Telerik.TestingFramework.Net.HttpRequestBuilder.CreateHttpWebRequest() at Telerik.TestStudio.Load.Http.OutstandingRequest.<Run>d__0.MoveNext()