diff --git a/Jenkinsfile b/Jenkinsfile
index 4be31c9..606c9df 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -7,7 +7,7 @@ pipeline {
       steps {
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=733']) {
+        withEnv(['NEXT_BUILD_NUMBER=734']) {
           // env.versionNumber = VersionNumber(versionNumberString : '4.0.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '4.0.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.versionNumberBeta = VersionNumber(versionNumberString : '4.0.${BUILD_DATE_FORMATTED, "yyMM"}-beta.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
diff --git a/SteamWareLib/devicesAuthProxy.cs b/SteamWareLib/devicesAuthProxy.cs
index de61612..dcc79e4 100644
--- a/SteamWareLib/devicesAuthProxy.cs
+++ b/SteamWareLib/devicesAuthProxy.cs
@@ -403,6 +403,63 @@ namespace SteamWare
       return builder.ToString();
     }
 
+    /// <summary>
+    /// verifica la presenza di un cookie VALIDO per autorizzare il device e se lo trova avvia utente IN SESSIONE...
+    /// </summary>
+    public bool checkAuthCookie()
+    {
+      bool answ = false;
+      try
+      {
+        HttpCookie cookie = HttpContext.Current.Request.Cookies[AuthCookieName];
+        if (!(cookie == null || cookie.Value == ""))
+        {
+          // ricavo utente da cookie...
+          string userAgent = "";
+          string postazione_IP = "";
+          string devSecret = cookie.Value;
+          DS_Auth.AnagDevicesRow device = null;
+          // cerco il device...ogni dipendente può averne + di 1 registrato a suo nome...
+          string email = "";
+          try
+          {
+            device = taAnagDev.getByDeviceSecret(devSecret)[0];
+            email = device.USER_NAME;
+          }
+          catch
+          { }
+          if (email != "")
+          {
+            // aggiorno descrizione (user agent) ed IP...
+            userAgent = HttpContext.Current.Request.UserAgent;
+            postazione_IP = HttpContext.Current.Request.UserHostAddress;
+            // controllo IP e DeviceDescription x eventuale update
+            if ((device.lastIPv4 != postazione_IP) || (device.Description != userAgent))
+            {
+              // salvo ultimo "contatto" del device aggiornando descrizione ed IP
+              taAnagDev.updateIP(device.IdxDevice, DateTime.Now, postazione_IP, userAgent);
+            }
+            // salvo in sessione utente
+            memLayer.ML.setSessionVal("email", email);
+            // avvio utente...
+            startUpUtente(email);
+            // salvo gruppo...
+            if (isAuth)
+            {
+              // se tutto ok
+              memLayer.ML.setSessionVal("Gruppo", rigaUtente.CodGruppo);
+              answ = true;
+            }
+          }
+        }
+      }
+      catch (Exception exc)
+      {
+        logger.lg.scriviLog(string.Format("Errore in checkAuthCookie:{0}{1}", Environment.NewLine, exc), tipoLog.EXCEPTION);
+      }
+      return answ;
+    }
+
     #endregion
 
     #region area utente
@@ -997,6 +1054,7 @@ namespace SteamWare
         memLayer.ML.setSessionVal("mappaSito", value);
       }
     }
+
     #endregion
 
     #region gestione pagina