diff --git a/cocosocket-client/Mutext.h b/cocosocket-client/Mutext.h
index 7c484a3..77e1f22 100644
--- a/cocosocket-client/Mutext.h
+++ b/cocosocket-client/Mutext.h
@@ -1,6 +1,7 @@
 #ifndef MUTEX_H
 #define MUTEX_H
 #include <pthread.h>
+#include <mutex> 
 
 class Mutext {
 private:
diff --git a/cocosocket-client/nbproject/private/private.xml b/cocosocket-client/nbproject/private/private.xml
index 73b91eb..aef7ea3 100644
--- a/cocosocket-client/nbproject/private/private.xml
+++ b/cocosocket-client/nbproject/private/private.xml
@@ -6,15 +6,6 @@
     </data>
     <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
     <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
-        <group>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/ThreadPool.h</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/SocketListerner.cpp</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/SocketListerner.h</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/Socket.h</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/Socket.cpp</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/Thread.h</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/Thread.cpp</file>
-            <file>file:/D:/work/git/cocosocket/cocosocket-client/main.cpp</file>
-        </group>
+        <group/>
     </open-files>
 </project-private>
diff --git a/cocosocket/pom.xml b/cocosocket/pom.xml
index c4e6486..705614d 100644
--- a/cocosocket/pom.xml
+++ b/cocosocket/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.beykery</groupId>
   <artifactId>cocosocket</artifactId>
-  <version>1.1.0</version>
+  <version>1.1.1</version>
   <packaging>jar</packaging>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -111,7 +111,7 @@
     <dependency>
       <groupId>io.netty</groupId>
       <artifactId>netty-all</artifactId>
-      <version>4.1.4.Final</version>
+      <version>4.1.10.Final</version>
     </dependency>
   </dependencies>
 </project>
\ No newline at end of file
diff --git a/cocosocket/src/main/java/org/ngame/socket/NServer.java b/cocosocket/src/main/java/org/ngame/socket/NServer.java
index ba45d2f..d99b765 100644
--- a/cocosocket/src/main/java/org/ngame/socket/NServer.java
+++ b/cocosocket/src/main/java/org/ngame/socket/NServer.java
@@ -13,7 +13,6 @@ import io.netty.channel.ChannelPipeline;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.ServerChannel;
 import io.netty.channel.epoll.Epoll;
-import io.netty.channel.epoll.EpollChannelOption;
 import io.netty.channel.epoll.EpollEventLoopGroup;
 import io.netty.channel.epoll.EpollServerSocketChannel;
 import io.netty.channel.local.LocalAddress;
diff --git a/cocosocket4unity/cocosocket4unity/Kcp.cs b/cocosocket4unity/cocosocket4unity/Kcp.cs
index 8cfa784..08cab79 100644
--- a/cocosocket4unity/cocosocket4unity/Kcp.cs
+++ b/cocosocket4unity/cocosocket4unity/Kcp.cs
@@ -346,7 +346,7 @@ public class Kcp
         rx_srtt = 1;
       }
     }
-    int rto = rx_srtt + Math.Max(1, 4 * rx_rttval);
+    int rto = rx_srtt + Math.Max(interval, 4 * rx_rttval);
     rx_rto = _ibound_(rx_minrto, rto, IKCP_RTO_MAX);
   }