diff --git a/app/build.gradle b/app/build.gradle
index d43f0e6..760da51 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,9 @@ android {
         minSdkVersion 24
         targetSdkVersion 30
         versionCode 6
-        versionName "V2.0.8.2"
-        // 2.0.8.2   修改网络连接证书设置
+        versionName "V2.0.8.3"
+        // 2.0.8.2   修改网络连接证书设置、定时开关机设置
+        // 2.0.8.3   获取mac修改
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'
diff --git a/app/src/main/java/qianmu/container/mqtt/MQTTService.java b/app/src/main/java/qianmu/container/mqtt/MQTTService.java
index d6a940d..bb9ca27 100644
--- a/app/src/main/java/qianmu/container/mqtt/MQTTService.java
+++ b/app/src/main/java/qianmu/container/mqtt/MQTTService.java
@@ -190,7 +190,6 @@ public class MQTTService extends Service {
         if(!StringUtil.isEmpty(passWord)){
             conOpt.setPassword(passWord.toCharArray());     //将字符串转换为字符串数组
         }
-//        conOpt.setAutomaticReconnect(true);
 
         // last will message
         boolean doConnect = true;
diff --git a/app/src/main/java/qianmu/container/util/DeviceUtil.java b/app/src/main/java/qianmu/container/util/DeviceUtil.java
index bc09945..841484d 100644
--- a/app/src/main/java/qianmu/container/util/DeviceUtil.java
+++ b/app/src/main/java/qianmu/container/util/DeviceUtil.java
@@ -54,21 +54,19 @@ public class DeviceUtil {
                 }
                 return ip;
             }else {
-                String allIP = "";
                 for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
                     NetworkInterface intf = en.nextElement();
                     for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                         InetAddress inetAddress = enumIpAddr.nextElement();
-                        allIP += inetAddress.getHostAddress() + "\n";
-                        if (!inetAddress.isLoopbackAddress() && !inetAddress.isLinkLocalAddress())
+                        if (!inetAddress.isLoopbackAddress() && !inetAddress.isLinkLocalAddress() && inetAddress instanceof Inet4Address) {
                             return inetAddress.getHostAddress();
+                        }
                     }
                 }
             }
         } catch (Throwable t) {
             LoggerUtil.e("getLocalIP", StringUtil.getThrowableStr(t));
         }
-
         return getLocalIPByWIFI();
     }
 
@@ -120,9 +118,10 @@ public class DeviceUtil {
             try {
                 //获取wifi服务
                 WifiManager wifiManager = (WifiManager) MyApplication.getInstance().getApplicationContext().getSystemService(Context.WIFI_SERVICE);
-                //判断wifi是否开启
-                if (!wifiManager.isWifiEnabled()) wifiManager.setWifiEnabled(true);
                 WifiInfo wifiInfo = wifiManager.getConnectionInfo();
+                if (wifiInfo == null || wifiInfo.getIpAddress() == 0) {
+                    return ""; 
+                }
                 int ipAddress = wifiInfo.getIpAddress();
                 ip = intToIp(ipAddress);
             } catch (Throwable t) {