diff --git a/core/Network/Broadcast.cs b/core/Network/Broadcast.cs
index a5bd2a5d..19a1eab9 100644
--- a/core/Network/Broadcast.cs
+++ b/core/Network/Broadcast.cs
@@ -77,7 +77,7 @@ await Parallel.ForEachAsync(peers, (knownPeer, cancellationToken) =>
                     try
                     {
                         if (cancellationToken.IsCancellationRequested) return ValueTask.CompletedTask;
-                        var _ = _cypherSystemCore.P2PDeviceReq().SendAsync<Nothing>(knownPeer.IpAddress,
+                        var _ = _cypherSystemCore.P2PDeviceReq().SendAsync<EmptyMessage>(knownPeer.IpAddress,
                             knownPeer.TcpPort,
                             knownPeer.PublicKey, msg).SafeForgetAsync(_logger).ConfigureAwait(false);
                     }
diff --git a/core/Network/P2PDeviceReq.cs b/core/Network/P2PDeviceReq.cs
index e2858694..1808293f 100644
--- a/core/Network/P2PDeviceReq.cs
+++ b/core/Network/P2PDeviceReq.cs
@@ -23,8 +23,8 @@ Task<T> SendAsync<T>(ReadOnlyMemory<byte> ipAddress, ReadOnlyMemory<byte> tcpPor
         ReadOnlyMemory<byte> value, bool deserialize = true);
 }
 
-public class Nothing { }
-public class Ok { }
+public class EmptyMessage { }
+public class Ping { }
 
 /// <summary>
 /// 
@@ -33,17 +33,13 @@ public class P2PDeviceReq : IP2PDeviceReq
 {
     private readonly ICypherSystemCore _cypherSystemCore;
     private readonly ILogger _logger;
-
+    private readonly Ping _ping = new();
+    
     public P2PDeviceReq(ICypherSystemCore cypherSystemCore)
     {
         _cypherSystemCore = cypherSystemCore;
         using var serviceScope = cypherSystemCore.ServiceScopeFactory.CreateScope();
         _logger = serviceScope.ServiceProvider.GetService<ILogger>()?.ForContext("SourceContext", nameof(P2PDeviceReq));
-
-        var soc = NngFactorySingleton.Instance.Factory.RequesterOpen();
-
-        var ireq = soc.Unwrap();
-
     }
 
     /// <summary>
@@ -88,8 +84,9 @@ public async Task<T> SendAsync<T>(ReadOnlyMemory<byte> ipAddress, ReadOnlyMemory
             foreach (var memory in packetStream.GetReadOnlySequence()) nngMsg.Append(memory.Span);
 
             var nngResult = await ctx.Send(nngMsg);
-            if (typeof(T) == typeof(Nothing)) return default;
             if (!nngResult.IsOk()) return default;
+            if (typeof(T) == typeof(EmptyMessage)) return default;
+            if (typeof(T) == typeof(Ping)) return (T)(object)_ping;
             var nngRecvMsg = nngResult.Unwrap();
             var message = await _cypherSystemCore.P2PDevice().DecryptAsync(nngRecvMsg);
             nngRecvMsg.Dispose();
diff --git a/core/Network/PeerDiscovery.cs b/core/Network/PeerDiscovery.cs
index 4573139f..f145f14a 100644
--- a/core/Network/PeerDiscovery.cs
+++ b/core/Network/PeerDiscovery.cs
@@ -78,7 +78,6 @@ public interface IPeerDiscovery
 /// </summary>
 public sealed class PeerDiscovery : IDisposable, IPeerDiscovery
 {
-    private const int PrunedTimeoutFromSeconds = 10;
     private readonly Caching<Peer> _caching = new();
     private readonly Caching<PeerCooldown> _peerCooldownCaching = new();
     private readonly ICypherSystemCore _cypherSystemCore;
@@ -255,7 +254,7 @@ private async Task BootstrapSeedsAsync()
                 var seedNode = _seedNodes[i];
                 try
                 {
-                    var _ = await _cypherSystemCore.P2PDeviceReq().SendAsync<Nothing>(seedNode.IpAddress,
+                    var _ = await _cypherSystemCore.P2PDeviceReq().SendAsync<EmptyMessage>(seedNode.IpAddress,
                         seedNode.TcpPort,
                         seedNode.PublicKey,
                         readOnlySequenceMsg.IsSingleSegment
@@ -306,22 +305,18 @@ private async Task OnReadyAsync()
         {
             try
             {
-                var _ = await _cypherSystemCore.P2PDeviceReq().SendAsync<Nothing>(peer.IpAddress, peer.TcpPort,
-                        peer.PublicKey, readOnlySequenceMsg.IsSingleSegment
-                            ? readOnlySequenceMsg.First
-                            : readOnlySequenceMsg.ToArray(), false);
+                if (await _cypherSystemCore.P2PDeviceReq().SendAsync<Ping>(peer.IpAddress, peer.TcpPort, peer.PublicKey,
+                        readOnlySequenceMsg.IsSingleSegment ? readOnlySequenceMsg.First : readOnlySequenceMsg.ToArray(),
+                        false) is null)
+                {
+                    _caching.Remove(peer.IpAddress);
+                }
+                    
             }
             catch (Exception ex)
             {
                 _logger.Here().Error("{@Message}", ex.Message);
             }
-            finally
-            {
-                if (Util.GetAdjustedTimeAsUnixTimestamp() > peer.Timestamp + PrunedTimeoutFromSeconds || peer.Timestamp == 0)
-                {
-                    _caching.Remove(peer.IpAddress);
-                }
-            }
         }
     }
 
diff --git a/core/core.csproj b/core/core.csproj
index 2c2cbacb..87bf42a9 100644
--- a/core/core.csproj
+++ b/core/core.csproj
@@ -4,7 +4,7 @@
         <TargetFramework>net6.0</TargetFramework>
         <Platforms>AnyCPU;x64</Platforms>
         <RootNamespace>CypherNetwork</RootNamespace>
-        <AssemblyVersion>0.0.70.0</AssemblyVersion>
+        <AssemblyVersion>0.0.71.0</AssemblyVersion>
         <Company>CypherNetwork</Company>
         <PackageId>core</PackageId>
         <AssemblyName>cyphernetworkcore</AssemblyName>
diff --git a/node/Program.cs b/node/Program.cs
index 74094059..acba6920 100644
--- a/node/Program.cs
+++ b/node/Program.cs
@@ -30,48 +30,48 @@ public static class Program
     /// <returns></returns>
     public static async Task<int> Main(string[] args)
     {
-        var config = new ConfigurationBuilder()
-            .SetBasePath(Directory.GetCurrentDirectory())
-            .AddJsonFile(AppSettingsFile, false, true)
-            .AddCommandLine(args)
-            .Build();
-
-        // args = new string[] { "--configure", "--showkey" };
-        // args = new string[] { "--configure" };
-        var settingsExists = File.Exists(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, AppSettingsFile));
-        if (!settingsExists)
-        {
-            await Console.Error.WriteLineAsync($"{AppSettingsFile} not found.");
-            return 1;
-        }
-        if (args.FirstOrDefault(arg => arg == "--configure") != null)
+        try
         {
-            var commands = args.Where(x => x != "--configure").ToArray();
-            if (commands.Contains("--showkey"))
+            var config = new ConfigurationBuilder()
+                .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
+                .AddJsonFile(AppSettingsFile, false, true)
+                .AddCommandLine(args)
+                .Build();
+
+            // args = new string[] { "--configure", "--showkey" };
+            // args = new string[] { "--configure" };
+            var settingsExists = File.Exists(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, AppSettingsFile));
+            if (!settingsExists)
             {
-                Startup.ShowPrivateKey = true;
+                await Console.Error.WriteLineAsync($"{AppSettingsFile} not found.");
+                return 1;
             }
-            else
+            if (args.FirstOrDefault(arg => arg == "--configure") != null)
             {
-                var _ = new Utility(config.Get<Config>());
-                return 0;
+                var commands = args.Where(x => x != "--configure").ToArray();
+                if (commands.Contains("--showkey"))
+                {
+                    Startup.ShowPrivateKey = true;
+                }
+                else
+                {
+                    var _ = new Utility(config.Get<Config>());
+                    return 0;
+                }
             }
-        }
-
-        const string logSectionName = "Log";
-        if (config.GetSection(logSectionName) != null)
-        {
-            Log.Logger = new LoggerConfiguration()
-                .ReadFrom.Configuration(config, logSectionName)
-                .CreateLogger();
-        }
-        else
-        {
-            throw new Exception($"No \"{logSectionName}\" section found in appsettings.json");
-        }
 
-        try
-        {
+            const string logSectionName = "Log";
+            if (config.GetSection(logSectionName) != null)
+            {
+                Log.Logger = new LoggerConfiguration()
+                    .ReadFrom.Configuration(config, logSectionName)
+                    .CreateLogger();
+            }
+            else
+            {
+                throw new Exception($"No \"{logSectionName}\" section found in appsettings.json");
+            }
+            
             Console.ForegroundColor = ConsoleColor.DarkMagenta;
             Console.WriteLine(@$"
    ______               __                                      __        
diff --git a/node/appsettings.json b/node/appsettings.json
index dd60adbc..c26db4df 100644
--- a/node/appsettings.json
+++ b/node/appsettings.json
@@ -24,7 +24,7 @@
       ],
       "Environment": "testnet",
       "SigningKeyRingName": "DefaultSigning.cyp3.Key",
-      "AutoSyncEveryMinutes": "10",
+      "AutoSyncEveryMinutes": 10,
       "PeerCooldownMinutes": 30,
       "CertificateMode": "self",
       "MaxBlockSize" : 2102912,
diff --git a/node/node.csproj b/node/node.csproj
index bcfac165..a8656d2b 100644
--- a/node/node.csproj
+++ b/node/node.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup> 
     <ServerGarbageCollection>true</ServerGarbageCollection> 
-    <AssemblyVersion>0.0.70.0</AssemblyVersion> 
+    <AssemblyVersion>0.0.71.0</AssemblyVersion> 
     <NeutralLanguage>en</NeutralLanguage> 
     <PackageId>node</PackageId>
   </PropertyGroup>