diff --git a/HybirdFrameworkCore/Utils/BitUtls.cs b/HybirdFrameworkCore/Utils/BitUtls.cs
index 74e8991..86ecac7 100644
--- a/HybirdFrameworkCore/Utils/BitUtls.cs
+++ b/HybirdFrameworkCore/Utils/BitUtls.cs
@@ -53,7 +53,8 @@ public static class BitUtls
 
         if (propertyType == STRING)
         {
-            return Convert.ChangeType(BytesToHexStr(bytes, start, length), propertyType);
+            
+            return Convert.ChangeType(Encoding.ASCII.GetString(bytes, start, length), propertyType);
         }
 
         if (propertyType == BYTEARRAY)
diff --git a/HybirdFrameworkDriver/TcpClient/TcpClient.cs b/HybirdFrameworkDriver/TcpClient/TcpClient.cs
index 32dca10..c44db39 100644
--- a/HybirdFrameworkDriver/TcpClient/TcpClient.cs
+++ b/HybirdFrameworkDriver/TcpClient/TcpClient.cs
@@ -110,7 +110,7 @@ public class TcpClient<TH, TD, TE> where TH : IChannelHandler
         Connected = false;
         Log.Info($"begin to connect {Host}:{Port}");
 
-        while (Connected)
+        while (!Connected)
         {
             try
             {