diff --git a/TestApp/MyService.cs b/TestApp/MyService.cs
index 532866b..f412b5f 100644
--- a/TestApp/MyService.cs
+++ b/TestApp/MyService.cs
@@ -29,7 +29,7 @@ namespace TestApp
                 Log.Info($"RPS: {counter}");
                 Interlocked.Exchange(ref counter, 0);
             });
-            for (int i = 0; i < int.MaxValue; i++)
+            while(true)
             {
                 try
                 {
diff --git a/ZeroLevel/Services/Network/SocketClient.cs b/ZeroLevel/Services/Network/SocketClient.cs
index 7e99cc9..8d705f4 100644
--- a/ZeroLevel/Services/Network/SocketClient.cs
+++ b/ZeroLevel/Services/Network/SocketClient.cs
@@ -393,7 +393,7 @@ namespace ZeroLevel.Network
                     _send_queue = new BlockingCollection<SendInfo>();
                     continue;
                 }
-                while (_stream.CanWrite == false || Status != SocketClientStatus.Working)
+                while (_stream?.CanWrite == false || Status != SocketClientStatus.Working)
                 {
                     try
                     {
diff --git a/ZeroLevel/Services/Network/Utils/ExClientServerCachee.cs b/ZeroLevel/Services/Network/Utils/ExClientServerCachee.cs
index ac183c8..d036ce8 100644
--- a/ZeroLevel/Services/Network/Utils/ExClientServerCachee.cs
+++ b/ZeroLevel/Services/Network/Utils/ExClientServerCachee.cs
@@ -8,6 +8,11 @@ namespace ZeroLevel.Network
     internal sealed class ExClientServerCachee
         : IDisposable
     {
+        static ExClientServerCachee()
+        {
+            Sheduller.RemindEvery(TimeSpan.FromSeconds(30), () => { Log.Info(string.Join("\r\n", _clientInstances.Keys)); });
+        }
+
         private static readonly ConcurrentDictionary<string, ExClient> _clientInstances = new ConcurrentDictionary<string, ExClient>();
         private static readonly ConcurrentDictionary<string, object> _clientLocks = new ConcurrentDictionary<string, object>();