diff --git a/IOB-WIN-NEXT/IOB-WIN-NEXT.csproj b/IOB-WIN-NEXT/IOB-WIN-NEXT.csproj
index 48db5aa6..513a68b3 100644
--- a/IOB-WIN-NEXT/IOB-WIN-NEXT.csproj
+++ b/IOB-WIN-NEXT/IOB-WIN-NEXT.csproj
@@ -133,7 +133,9 @@
       <HintPath>..\packages\System.Formats.Asn1.5.0.0\lib\net461\System.Formats.Asn1.dll</HintPath>
     </Reference>
     <Reference Include="System.IdentityModel" />
-    <Reference Include="System.IO.Compression" />
+    <Reference Include="System.IO.Compression, Version=4.1.2.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.IO.Compression.4.3.0\lib\net46\System.IO.Compression.dll</HintPath>
+    </Reference>
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
     </Reference>
diff --git a/IOB-WIN-NEXT/IobGeneric.cs b/IOB-WIN-NEXT/IobGeneric.cs
index a1cebc3d..5fe47712 100644
--- a/IOB-WIN-NEXT/IobGeneric.cs
+++ b/IOB-WIN-NEXT/IobGeneric.cs
@@ -111,7 +111,7 @@ namespace IOB_WIN_NEXT
         protected AdapterForm parentForm;
 
         /// <summary>
-        /// TImeout x ping al server
+        /// Timeout x ping al server
         /// </summary>
         protected int pingServerMsTimeout = utils.CRI("pingMsTimeout");
 
@@ -521,6 +521,7 @@ namespace IOB_WIN_NEXT
         {
             get
             {
+                lgInfo($"Test Server Ping");
                 IPStatus answ = IPStatus.Unknown;
                 // se disabilitato salto...
                 if (pingDisabled)
@@ -531,6 +532,8 @@ namespace IOB_WIN_NEXT
                 {
                     IPAddress address;
                     PingReply reply;
+                    var rand = new Random();
+                    int pingTOut = 500;
                     using (Ping pingSender = new Ping())
                     {
                         address = IPAddress.Loopback;
@@ -552,24 +555,27 @@ namespace IOB_WIN_NEXT
                             // se != null --> uso address...
                             if (address != null)
                             {
-                                reply = pingSender.Send(address, 300);
+                                pingTOut = rand.Next(100, 200);
+                                reply = pingSender.Send(address, pingServerMsTimeout + pingTOut);
                             }
                             else
                             {
-                                reply = pingSender.Send(cIobConf.cncIpAddr, 300);
+                                pingTOut = rand.Next(200, 400);
+                                reply = pingSender.Send(cIobConf.cncIpAddr, pingServerMsTimeout + pingTOut);
                             }
                         }
-                        catch
+                        catch (Exception exc)
                         {
-                            reply = pingSender.Send(IPAddress.Loopback, 300);
+                            pingTOut = rand.Next(50, 100);
+                            reply = pingSender.Send(IPAddress.Loopback, pingServerMsTimeout + pingTOut);
+                            lgError($"ping to loopback addres per eccezione:{Environment.NewLine}{exc}");
                         }
                         // se ho timeout riprovo...
                         while (reply.Status != IPStatus.Success && numRetry < maxRetry)
                         {
                             lgInfo($"Server Ping KO | reply: {reply.Status} --> retry");
-                            var rand = new Random();
-                            Thread.Sleep(rand.Next(150, 500));
-                            reply = pingSender.Send(address, pingServerMsTimeout * numRetry / 2);
+                            Thread.Sleep(rand.Next(300, 600));
+                            reply = pingSender.Send(address, pingServerMsTimeout * numRetry / 2 + pingTOut);
                             numRetry++;
                             if (reply.Status == IPStatus.Success)
                             {
@@ -4522,7 +4528,7 @@ namespace IOB_WIN_NEXT
         /// <param name="valore"></param>
         /// <param name="chiave"></param>
         /// <returns></returns>
-        public void saveValue(ref Dictionary<string, string> outVal, double valore, string chiave)
+        public virtual void saveValue(ref Dictionary<string, string> outVal, double valore, string chiave)
         {
             //check obj preliminare
             if (outVal == null)
diff --git a/IOB-WIN-NEXT/IobKawasaki.cs b/IOB-WIN-NEXT/IobKawasaki.cs
index 723c2e5a..e143c247 100644
--- a/IOB-WIN-NEXT/IobKawasaki.cs
+++ b/IOB-WIN-NEXT/IobKawasaki.cs
@@ -6,7 +6,7 @@ using System.Net.NetworkInformation;
 
 namespace IOB_WIN_NEXT
 {
-    public class IobKawasaki : IobGeneric
+    public class IobKawasaki : IobGeneric, IDisposable
     {
         #region Private Fields
 
@@ -696,6 +696,14 @@ namespace IOB_WIN_NEXT
 
         #region Public Methods
 
+        /// <summary>
+        /// Metodo dispose x il currPLC contenuto
+        /// </summary>
+        public void Dispose()
+        {
+            KAWASAKI_ref.Dispose();
+        }
+
         /// <summary>
         /// Processo i task richiesti e li elimino dalla coda 1:1
         /// </summary>
diff --git a/IOB-WIN-NEXT/IobModbusTCP.cs b/IOB-WIN-NEXT/IobModbusTCP.cs
index 0b4e065a..0db0ad0e 100644
--- a/IOB-WIN-NEXT/IobModbusTCP.cs
+++ b/IOB-WIN-NEXT/IobModbusTCP.cs
@@ -1166,7 +1166,7 @@ namespace IOB_WIN_NEXT
         /// <param name="valore"></param>
         /// <param name="chiave"></param>
         /// <returns></returns>
-        public void saveValue(ref Dictionary<string, string> outVal, double valore, string chiave)
+        public override void saveValue(ref Dictionary<string, string> outVal, double valore, string chiave)
         {
             //check obj preliminare
             if (outVal == null)
diff --git a/IOB-WIN-NEXT/IobModbusTCPHam.cs b/IOB-WIN-NEXT/IobModbusTCPHam.cs
index 532bf3d0..1bdc69c2 100644
--- a/IOB-WIN-NEXT/IobModbusTCPHam.cs
+++ b/IOB-WIN-NEXT/IobModbusTCPHam.cs
@@ -43,7 +43,9 @@ namespace IOB_WIN_NEXT
                     processDynData();
                 }
                 catch (Exception exc)
-                { }
+                {
+                    lgError($"Eccezione in processDynData iniziale x ModBus TCP HAM:{Environment.NewLine}{exc}");
+                }
             }
         }
 
diff --git a/IOB-WIN-NEXT/IobSiemensComeca.cs b/IOB-WIN-NEXT/IobSiemensComeca.cs
index 68316cf6..8dbdfe18 100644
--- a/IOB-WIN-NEXT/IobSiemensComeca.cs
+++ b/IOB-WIN-NEXT/IobSiemensComeca.cs
@@ -111,8 +111,8 @@ namespace IOB_WIN_NEXT
              *
              ----------------------------------------------------- */
 
-            bool fatto = false;
-            ushort valW = 0;
+            //bool fatto = false;
+            //ushort valW = 0;
 
             var MemInt = new byte[2];
 
diff --git a/IOB-WIN-NEXT/IobSiemensCosmap.cs b/IOB-WIN-NEXT/IobSiemensCosmap.cs
index 9bc31354..5724e365 100644
--- a/IOB-WIN-NEXT/IobSiemensCosmap.cs
+++ b/IOB-WIN-NEXT/IobSiemensCosmap.cs
@@ -71,10 +71,10 @@ namespace IOB_WIN_NEXT
              *
              ----------------------------------------------------- */
 
-            bool fatto = false;
+            //bool fatto = false;
             ushort currStatus = 0;
             ushort allarme = 0;
-            ushort valW = 0;
+            //ushort valW = 0;
 
             var MemInt = new byte[2];
 
diff --git a/IOB-WIN-NEXT/packages.config b/IOB-WIN-NEXT/packages.config
index 5d6bf35d..166cfa69 100644
--- a/IOB-WIN-NEXT/packages.config
+++ b/IOB-WIN-NEXT/packages.config
@@ -22,6 +22,7 @@
   <package id="Selenium.WebDriver.ChromeDriver" version="90.0.4430.2400" targetFramework="net462" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net462" />
   <package id="System.Formats.Asn1" version="5.0.0" targetFramework="net462" />
+  <package id="System.IO.Compression" version="4.3.0" targetFramework="net462" />
   <package id="System.Memory" version="4.5.4" targetFramework="net462" />
   <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net462" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="5.0.0" targetFramework="net462" />