diff --git a/MP.SPEC/Components/ParamsFilter.razor.cs b/MP.SPEC/Components/ParamsFilter.razor.cs
index eae78d0e..9930b251 100644
--- a/MP.SPEC/Components/ParamsFilter.razor.cs
+++ b/MP.SPEC/Components/ParamsFilter.razor.cs
@@ -1,6 +1,5 @@
 using Microsoft.AspNetCore.Components;
 using MP.SPEC.Data;
-using System.Runtime.CompilerServices;
 
 namespace MP.SPEC.Components
 {
@@ -170,6 +169,14 @@ namespace MP.SPEC.Components
             SelFilter = new SelectFluxParams();
             ListMacchine = await MDService.MacchineWithFlux();
             ListFlux = await MDService.ParametriGetFilt(selMacchina);
+
+            var configData = await MDService.ConfigGetAll();
+            var currRec = configData.FirstOrDefault(x => x.Chiave == "numOreAnticipoSnapshot");
+            if (currRec != null)
+            {
+                int.TryParse(currRec.Valore, out numOreAnticipoSnapshot);
+            }
+
             await FilterChanged.InvokeAsync(SelFilter);
         }
 
@@ -182,7 +189,7 @@ namespace MP.SPEC.Components
             currFilt.CurrPage = 0;
             currFilt.lastUpdate = $"{DateTime.Now:yyyy/MM/dd HH:mm:ss}";
             currFilt.dtMax = RoundDatetime(5);
-            currFilt.dtMin = RoundDatetime(5).AddDays(-1);
+            currFilt.dtMin = RoundDatetime(5).AddHours(-numOreAnticipoSnapshot);
             SelFilter = currFilt;
         }
 
@@ -196,19 +203,19 @@ namespace MP.SPEC.Components
 
         protected async Task takeSnapshot()
         {
-            // indico snapshot fatto
-            snapshotDone = true;
-            startTimer();
             // fermo udpate
             liveUpdate = false;
             // se non ho data rif uso adesso...
             DateTime dtMax = selDtMax == null ? RoundDatetime(5) : (DateTime)selDtMax;
-            DateTime dtMin = selDtMin == null ? RoundDatetime(5).AddDays(-1) : (DateTime)selDtMin;
+            DateTime dtMin = selDtMin == null ? RoundDatetime(5).AddHours(-numOreAnticipoSnapshot) : (DateTime)selDtMin;
             // aggiungo 2 sec
             dtMax = dtMax.AddSeconds(15);
             //dtMin = dtMin.AddMinutes(-30);
             await MDService.DossiersTakeParamsSnapshotLast(selMacchina, dtMin, dtMax);
             lastUpdate = $"{DateTime.Now:yyyy/MM/dd HH:mm:ss}";
+            // indico snapshot fatto
+            snapshotDone = true;
+            startTimer();
         }
 
         protected void toggleParams()
@@ -237,15 +244,17 @@ namespace MP.SPEC.Components
 
         private static System.Timers.Timer aTimer = new System.Timers.Timer();
         private List<string>? ListFlux = null;
-
         private List<string>? ListMacchine = null;
-
+        private int numOreAnticipoSnapshot = 5;
         private bool snapshotDone = false;
 
         #endregion Private Fields
 
         #region Private Properties
 
+        [Inject]
+        private NavigationManager NavManager { get; set; } = null!;
+
         private DateTime? selDtMax
         {
             get => SelFilter.dtMax;
@@ -265,6 +274,7 @@ namespace MP.SPEC.Components
                 }
             }
         }
+
         private DateTime? selDtMin
         {
             get => SelFilter.dtMin;
@@ -285,9 +295,6 @@ namespace MP.SPEC.Components
             }
         }
 
-        [Inject]
-        private NavigationManager NavManager { get; set; } = null!;
-
         private bool showEditPar { get; set; } = false;
 
         private string snapMode
diff --git a/MP.SPEC/appsettings.json b/MP.SPEC/appsettings.json
index f99535b9..f4116e61 100644
--- a/MP.SPEC/appsettings.json
+++ b/MP.SPEC/appsettings.json
@@ -15,6 +15,6 @@
   "ServerConf": {
     "maxAge": "2000",
     "cacheCheckArtUsato": 2,
-    "redisLongTimeCache":  15
+    "redisLongTimeCache": 15
   }
 }