diff --git a/app/src/main/java/com/xypower/mpremote/MainActivity.java b/app/src/main/java/com/xypower/mpremote/MainActivity.java
index e834ed2..1b74d9a 100644
--- a/app/src/main/java/com/xypower/mpremote/MainActivity.java
+++ b/app/src/main/java/com/xypower/mpremote/MainActivity.java
@@ -60,7 +60,7 @@ public class MainActivity extends AppCompatActivity {
 
     private static final int ADB_SERVER_PORT = 5555;
 
-    private static final String WIFI_IP_PREFIX = "192.168.50.";
+    private static final String WIFI_IP_PREFIX = "192.168.";
     // private static final String WIFI_IP_DEVIDE = "192.168.50.1";
     private static final String WIFI_IP_DEVIDE = "192.168.50.137";
 
@@ -117,6 +117,11 @@ public class MainActivity extends AppCompatActivity {
 
                 if (ipAddressByWifi.contains(WIFI_IP_PREFIX)) {
 
+                    String deviceId = ipAddressByWifi;
+                    int pos = deviceId.lastIndexOf(".");
+                    deviceId = deviceId.substring(pos);
+                    deviceId += ".1";
+
                     Socket mSocket = null;
                     try {
                         mSocket = new Socket(WIFI_IP_DEVIDE, ADB_SERVER_PORT);