private void KeepAlive() { try { var rootUrl = UtilityWeb.GetRootUrl(context); var valid = UtilityValidation.IsValidUri(rootUrl); if (valid) { var url = rootUrl + @"/cantieri-login.aspx"; var webclient = new WebClient(); webclient.DownloadString(url); AddLog("KeepAlive avviato per sito " + url, "OK"); } } catch (Exception ex) { UtilityError.Write(ex); } }