diff --git a/MP.SPEC/Components/ParamsFilter.razor.cs b/MP.SPEC/Components/ParamsFilter.razor.cs
index 05e20d8e..ed1ef126 100644
--- a/MP.SPEC/Components/ParamsFilter.razor.cs
+++ b/MP.SPEC/Components/ParamsFilter.razor.cs
@@ -41,7 +41,7 @@ namespace MP.SPEC.Components
         }
 
         [Inject]
-        protected MpDataService MDService { get; set; }
+        protected MpDataService MDService { get; set; } = null!;
 
         protected string selFlux
         {
diff --git a/MP.SPEC/Data/MpDataService.cs b/MP.SPEC/Data/MpDataService.cs
index 6c8a4c5c..2c864fec 100644
--- a/MP.SPEC/Data/MpDataService.cs
+++ b/MP.SPEC/Data/MpDataService.cs
@@ -80,7 +80,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.AnagStatiComm());
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                await redisDb.StringSetAsync(redisStatoCom, rawData, TimeSpan.FromMinutes(maxAgeConfig));
+                await redisDb.StringSetAsync(redisStatoCom, rawData, getRandTOut(maxAgeConfig));
                 stopWatch.Stop();
                 TimeSpan ts = stopWatch.Elapsed;
                 Log.Debug($"AnagStatiComm Read from DB: {ts.TotalMilliseconds}ms");
@@ -112,7 +112,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.AnagTipoArtLV());
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                await redisDb.StringSetAsync(redisTipoArt, rawData, TimeSpan.FromMinutes(maxAgeConfig));
+                await redisDb.StringSetAsync(redisTipoArt, rawData, getRandTOut(maxAgeConfig));
                 stopWatch.Stop();
                 TimeSpan ts = stopWatch.Elapsed;
                 Log.Debug($"AnagTipoArtLV Read from DB: {ts.TotalMilliseconds}ms");
@@ -167,7 +167,7 @@ namespace MP.SPEC.Data
             string codArticolo = $"{CodArt}";
             int cacheCheckArtUsato = 1;
             int.TryParse(_configuration.GetValue<string>("ServerConf:cacheCheckArtUsato"), out cacheCheckArtUsato);
-            TimeSpan TTLCache = TimeSpan.FromMinutes(cacheCheckArtUsato);
+            TimeSpan TTLCache = getRandTOut(cacheCheckArtUsato);
             // cerco in cache redis...
             string redKeyArtUsed = $"{Utils.redKeyArtUsed}:{codArticolo}";
             string redKeyTabCheckArt = Utils.redKeyTabCheckArt;
@@ -242,7 +242,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.ConfigGetAll());
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                await redisDb.StringSetAsync(redisConfKey, rawData, TimeSpan.FromMinutes(maxAgeConfig));
+                await redisDb.StringSetAsync(redisConfKey, rawData, getRandTOut(maxAgeConfig));
                 stopWatch.Stop();
                 TimeSpan ts = stopWatch.Elapsed;
                 Log.Debug($"ConfigGetAll Read from DB: {ts.TotalMilliseconds}ms");
@@ -394,7 +394,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.MacchineGetAll());
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                redisDb.StringSet(currKey, rawData, TimeSpan.FromMinutes(maxAgeMin));
+                redisDb.StringSet(currKey, rawData, getRandTOut(maxAgeMin));
             }
             if (result == null)
             {
@@ -431,7 +431,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.MacchineWithFlux());
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                redisDb.StringSet(currKey, rawData, TimeSpan.FromMinutes(maxAgeMin));
+                redisDb.StringSet(currKey, rawData, getRandTOut(maxAgeMin));
             }
             if (result == null)
             {
@@ -469,7 +469,7 @@ namespace MP.SPEC.Data
                 result = await Task.FromResult(dbController.ParametriGetFilt(IdxMacchina));
                 // serializzp e salvo...
                 rawData = JsonConvert.SerializeObject(result);
-                redisDb.StringSet(currKey, rawData, TimeSpan.FromMinutes(maxAgeMin));
+                redisDb.StringSet(currKey, rawData, getRandTOut(maxAgeMin));
             }
             if (result == null)
             {
@@ -503,6 +503,27 @@ namespace MP.SPEC.Data
 
         #endregion Public Methods
 
+        #region Protected Fields
+
+        protected Random rand = new Random();
+
+        #endregion Protected Fields
+
+        #region Protected Methods
+
+        /// <summary>
+        /// Restituisce un timeout dai minuti richiesti + tempo random 1..60 sec
+        /// </summary>
+        /// <param name="stdMinutes"></param>
+        /// <returns></returns>
+        protected TimeSpan getRandTOut(int stdMinutes)
+        {
+            double rndValue = (double)stdMinutes + (double)rand.Next(1, 60) / 60;
+            return TimeSpan.FromMinutes(rndValue);
+        }
+
+        #endregion Protected Methods
+
         #region Private Fields
 
         private const string redisConfKey = "MP:SPEC:Cache:Config";