diff --git a/lib/core/config/app_config.dart b/lib/core/config/app_config.dart
index 2d1c8c7..145f41c 100644
--- a/lib/core/config/app_config.dart
+++ b/lib/core/config/app_config.dart
@@ -14,7 +14,7 @@ class AppConfig {
   /// 开发调试默认服务地址，当前指向本机局域网 IP。
   ///
   /// 换网络时只改这一行，地址不要带结尾斜杠。
-  static const String devHostBaseUrl = 'http://10.39.237.1:8081';
+  static const String devHostBaseUrl = 'http://192.168.31.187:8081';
 
   /// 本机后端地址：通过 `adb reverse tcp:8081 tcp:8081` 映射到开发机，
   /// 探测可达时 App 直连本机服务；不可达时回落到公网地址。
diff --git a/test/config/server_endpoint_test.dart b/test/config/server_endpoint_test.dart
index 59beeb8..6ecaee2 100644
--- a/test/config/server_endpoint_test.dart
+++ b/test/config/server_endpoint_test.dart
@@ -63,7 +63,7 @@ void main() {
   });
 
   test('should_use_the_configured_local_address_for_device_default', () {
-    expect(AppConfig.devHostBaseUrl, 'http://10.39.237.1:8081');
+    expect(AppConfig.devHostBaseUrl, 'http://192.168.31.187:8081');
   });
 
   test('should_skip_probe_when_compiled_override_is_set', () async {