diff --git a/IOB-WIN/IobMTC.cs b/IOB-WIN/IobMTC.cs
index 99b69dc9..3752a611 100644
--- a/IOB-WIN/IobMTC.cs
+++ b/IOB-WIN/IobMTC.cs
@@ -235,7 +235,7 @@ namespace IOB_WIN
         MTC_ref = new MTConnectClient($"http://{cIobConf.cncIpAddr}:{port}");
         // Subscribe to the Event handlers to receive the MTConnect documents
         MTC_ref.ProbeReceived += DevicesSuccessful;
-        MTC_ref.CurrentReceived += StreamsSuccessful;
+        MTC_ref.CurrentReceived += CurrentSuccessful;
         MTC_ref.SampleReceived += StreamsSuccessful;
 
         // attendo 1 sec...
@@ -624,8 +624,41 @@ namespace IOB_WIN
       }
       return answ;
     }
-
+    /// <summary>
+    /// Effettuata discovery iniziale
+    /// </summary>
+    /// <param name="document"></param>
+    /// <param name="forceSend"></param>
+    protected void CurrentSuccessful(MTConnectStreams.Document document)
+    {
+      if (document != null)
+      {
+        lgInfo($"DiscoverySuccessful: discovery per {document.Url}");
+        if (document.DeviceStreams != null)
+        {
+          lgInfo($"DiscoverySuccessful: trovati {document.DeviceStreams.Count} streams");
+        }
+        checkAndSend(document, true);
+      }
+      else
+      {
+        lgError("StreamsSuccessful ERROR: document è null");
+      }
+    }
+    /// <summary>
+    /// Ricevuta modifica come stream
+    /// </summary>
+    /// <param name="document"></param>
     protected void StreamsSuccessful(MTConnectStreams.Document document)
+    {
+      checkAndSend(document, false);
+    }
+    /// <summary>
+    /// Verifica ed invia variazioni
+    /// </summary>
+    /// <param name="document"></param>
+    /// <param name="forceSend"></param>
+    private void checkAndSend(MTConnectStreams.Document document, bool forceSend)
     {
       if (document != null)
       {
@@ -648,7 +681,7 @@ namespace IOB_WIN
               var time2 = tStamp.ToLocalTime();
               // verifico se salvare
               bool changed = checkSaveItem(dataItem);
-              if (changed)
+              if (changed || forceSend)
               {
                 // accodare ed invia nella coda ALARMS (che POI salva in document MongoDB anche ultimi x minuti di FluxLog...)
                 accodaAlarmLog(sVal, qEncodeFLog(time2, descr, dataItem.CDATA));
@@ -656,8 +689,10 @@ namespace IOB_WIN
               }
             }
           }
-          catch
-          { }
+          catch (Exception exc)
+          {
+            lgError($"Eccezione in decodifica Conditions x StreamSuccesfull{Environment.NewLine}{exc}");
+          }
           // check su events
           try
           {
@@ -672,15 +707,17 @@ namespace IOB_WIN
               var time2 = tStamp.ToLocalTime();
               // verifico se salvare
               bool changed = checkSaveItem(dataItem);
-              if (changed)
+              if (changed || forceSend)
               {
                 accodaFLog(sVal, qEncodeFLog(time2, descr, dataItem.CDATA));
                 //accodaFLog(sVal, qEncodeFLog(locTStamp, descr, dataItem.CDATA));
               }
             }
           }
-          catch
-          { }
+          catch (Exception exc)
+          {
+            lgError($"Eccezione in decodifica Events x StreamSuccesfull{Environment.NewLine}{exc}");
+          }
 
           // check su samples
           try
@@ -696,7 +733,7 @@ namespace IOB_WIN
               var time2 = tStamp.ToLocalTime();
               // verifico se salvare
               bool changed = checkSaveSample(dataItem);
-              if (changed)
+              if (changed || forceSend)
               {
                 accodaFLog(sVal, qEncodeFLog(time2, descr, dataItem.CDATA));
                 //accodaFLog(sVal, qEncodeFLog(locTStamp, descr, dataItem.CDATA));
@@ -705,16 +742,22 @@ namespace IOB_WIN
               {
                 if (utils.CRB("verbose"))
                 {
-                  lgInfo($"NON ACCODATO sample poiché verifica variazioen ha dato esito negativo");
+                  lgInfo($"NON ACCODATO sample poiché verifica variazione SAMPLE ha dato esito negativo");
                 }
               }
             }
           }
-          catch
-          { }
+          catch (Exception exc)
+          {
+            lgError($"Eccezione in decodifica Samples x StreamSuccesfull{Environment.NewLine}{exc}");
+          }
 
         }
       }
+      else
+      {
+        lgError("StreamsSuccessful ERROR: document è null");
+      }
     }
 
     /// <summary>
diff --git a/Jenkinsfile b/Jenkinsfile
index 1603ca05..89d4d617 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -16,7 +16,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=570']) {
+        withEnv(['NEXT_BUILD_NUMBER=571']) {
           // env.versionNumber = VersionNumber(versionNumberString : '2.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '2.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO-IOB-WIN'