diff --git a/IOB-WIN-NEXT/App.config b/IOB-WIN-NEXT/App.config
index bb1a3721..820f073c 100644
--- a/IOB-WIN-NEXT/App.config
+++ b/IOB-WIN-NEXT/App.config
@@ -20,6 +20,7 @@
 		<add key="pingMsTimeout" value="1500"/>
 		<add key="serverPingDisabled" value="false"/>
 		<add key="urlCallTOut" value="9999"/>
+		<add key="urlRandWait" value="200"/>
 		<!-- ciclo corto x invio a server: ms -->
 		<add key="timerIntMs" value="10"/>
 		<add key="fastCount" value="20"/>
diff --git a/IOB-WIN-NEXT/IobGeneric.cs b/IOB-WIN-NEXT/IobGeneric.cs
index 753f7cde..74a0030e 100644
--- a/IOB-WIN-NEXT/IobGeneric.cs
+++ b/IOB-WIN-NEXT/IobGeneric.cs
@@ -196,6 +196,11 @@ namespace IOB_WIN_NEXT
         /// </summary>
         public bool adpRunning = false;
 
+        /// <summary>
+        /// Valore di attesa (random) dopo ogni invio x evitare congestione send...
+        /// </summary>
+        protected static int urlRandWait = 0;
+
         /// <summary>
         /// valore booleano di check se l'adapter STIA SALVANDO
         /// </summary>
@@ -2072,6 +2077,9 @@ namespace IOB_WIN_NEXT
             lastAlarm = "";
             doStartMemDump = utils.CRB("doStartMemDump");
             doSampleMemory = utils.CRB("doSampleMemory");
+            // fix url wait random...
+            urlRandWait = utils.CRI("urlRandWait");
+
             // svuoto code se richiesto
             if (resetQueue)
             {
@@ -3274,11 +3282,21 @@ namespace IOB_WIN_NEXT
                 //Task<string> resp = utils.callUrlAsync(URL);
                 //answ = resp.Result;
                 answ = utils.callUrlAsync(URL);
+                if (urlRandWait > 0)
+                {
+                    Random rnd = new Random();
+                    Thread.Sleep(rnd.Next(urlRandWait / 10, urlRandWait));
+                }
             }
             // chiamata SOLO NORMALE SINCRONA...
             else
             {
                 answ = utils.callUrl(URL);
+                if (urlRandWait > 0)
+                {
+                    Random rnd = new Random();
+                    Thread.Sleep(rnd.Next(urlRandWait / 10, urlRandWait));
+                }
             }
             return answ;
         }
@@ -3297,11 +3315,21 @@ namespace IOB_WIN_NEXT
             if (doAsync)
             {
                 answ = utils.callUrlAsync(URL, payload);
+                if (urlRandWait > 0)
+                {
+                    Random rnd = new Random();
+                    Thread.Sleep(rnd.Next(urlRandWait / 10, urlRandWait));
+                }
             }
             // chiamata SOLO NORMALE SINCRONA...
             else
             {
                 answ = utils.callUrl(URL, payload);
+                if (urlRandWait > 0)
+                {
+                    Random rnd = new Random();
+                    Thread.Sleep(rnd.Next(urlRandWait / 10, urlRandWait));
+                }
             }
             return answ;
         }
@@ -5014,6 +5042,8 @@ namespace IOB_WIN_NEXT
                         {
                             // chiamo URL!
                             string answ = callUrlWithPayload(lastUrl, payload, doAsync);
+                            // attesa opzionale se configurata
+
                             // loggo!
                             lgInfo($"[SEND payload] TipoURL: {tipoUrl} | {listQueueVal.Count} records --> {answ}");
                             // se "OK" verde, altrimenti errore --> ROSSO