diff --git a/cim_for_netty/cim-java-sdk/src/com/farsunset/cim/sdk/client/CIMConnectorManager.java b/cim_for_netty/cim-java-sdk/src/com/farsunset/cim/sdk/client/CIMConnectorManager.java
index bfc0234..f0038a7 100644
--- a/cim_for_netty/cim-java-sdk/src/com/farsunset/cim/sdk/client/CIMConnectorManager.java
+++ b/cim_for_netty/cim-java-sdk/src/com/farsunset/cim/sdk/client/CIMConnectorManager.java
@@ -129,8 +129,8 @@ class CIMConnectorManager extends SimpleChannelInboundHandler<Object> {
 
 					@Override
 					public void operationComplete(ChannelFuture future) throws Exception {
+						semaphore.release();
 						future.removeListener(this);
-						semaphore.acquire();
 						if(!future.isSuccess() && future.cause() != null) {
 							handleConnectFailure(future.cause(),remoteAddress);
 						}