diff --git a/jetlinks-components/network-component/mqtt-component/src/main/java/org/jetlinks/community/network/mqtt/gateway/device/MqttServerDeviceGateway.java b/jetlinks-components/network-component/mqtt-component/src/main/java/org/jetlinks/community/network/mqtt/gateway/device/MqttServerDeviceGateway.java
index ffeed9b0..58731e8b 100644
--- a/jetlinks-components/network-component/mqtt-component/src/main/java/org/jetlinks/community/network/mqtt/gateway/device/MqttServerDeviceGateway.java
+++ b/jetlinks-components/network-component/mqtt-component/src/main/java/org/jetlinks/community/network/mqtt/gateway/device/MqttServerDeviceGateway.java
@@ -158,38 +158,38 @@ class MqttServerDeviceGateway implements DeviceGateway, MonitorSupportDeviceGate
                                                                                                    MqttConnection connection) {
         return Mono
             .fromCallable(() -> {
-                String deviceId = device.getDeviceId();
-                if (resp.isSuccess()) {
-                    counter.increment();
-                    DeviceSession session = sessionManager.getSession(deviceId);
-                    MqttConnectionSession newSession = new MqttConnectionSession(deviceId, device, getTransport(), connection, gatewayMonitor);
-                    if (null == session) {
-                        sessionManager.register(newSession);
-                    } else if (session instanceof ReplaceableDeviceSession) {
-                        ((ReplaceableDeviceSession) session).replaceWith(newSession);
-                    }
-                    gatewayMonitor.connected();
-                    gatewayMonitor.totalConnection(counter.sum());
-                    //监听断开连接
-                    connection.onClose(conn -> {
-                        counter.decrement();
-                        DeviceSession _tmp = sessionManager.getSession(newSession.getId());
-
-                        if (newSession == _tmp || _tmp == null) {
-                            sessionManager.unregister(deviceId);
+                try {
+                    String deviceId = device.getDeviceId();
+                    if (resp.isSuccess()) {
+                        counter.increment();
+                        DeviceSession session = sessionManager.getSession(deviceId);
+                        MqttConnectionSession newSession = new MqttConnectionSession(deviceId, device, getTransport(), connection, gatewayMonitor);
+                        if (null == session) {
+                            sessionManager.register(newSession);
+                        } else if (session instanceof ReplaceableDeviceSession) {
+                            ((ReplaceableDeviceSession) session).replaceWith(newSession);
                         }
-                        gatewayMonitor.disconnected();
+                        gatewayMonitor.connected();
                         gatewayMonitor.totalConnection(counter.sum());
-                    });
-                    try {
-                        return Tuples.of(connection.accept(), device, newSession);
-                    } catch (IllegalStateException ignore) {
+                        //监听断开连接
+                        connection.onClose(conn -> {
+                            counter.decrement();
+                            DeviceSession _tmp = sessionManager.getSession(newSession.getId());
 
+                            if (newSession == _tmp || _tmp == null) {
+                                sessionManager.unregister(deviceId);
+                            }
+                            gatewayMonitor.disconnected();
+                            gatewayMonitor.totalConnection(counter.sum());
+                        });
+                        return Tuples.of(connection.accept(), device, newSession);
+                    } else {
+                        log.warn("MQTT客户端认证[{}]失败:{}", deviceId, resp.getMessage());
+                        connection.reject(MqttConnectReturnCode.CONNECTION_REFUSED_BAD_USER_NAME_OR_PASSWORD);
+                        gatewayMonitor.rejected();
                     }
-                } else {
-                    connection.reject(MqttConnectReturnCode.CONNECTION_REFUSED_BAD_USER_NAME_OR_PASSWORD);
-                    gatewayMonitor.rejected();
-                    log.warn("MQTT客户端认证[{}]失败:{}", deviceId, resp.getMessage());
+                } catch (IllegalStateException ignore) {
+
                 }
                 return null;
             })