diff --git a/projects/IoTCenter/Controllers/AppController.cs b/projects/IoTCenter/Controllers/AppController.cs
index 9fe53649..925ba02f 100644
--- a/projects/IoTCenter/Controllers/AppController.cs
+++ b/projects/IoTCenter/Controllers/AppController.cs
@@ -417,7 +417,7 @@ namespace IoTCenter.Controllers
 
         /************************************************************/
 
-        public IActionResult Power(string token,string connectionId, string method,string[] numbers)
+        public IActionResult Power(string token, string connectionId, string method, string[] numbers)
         {
             var userName = this.GetUserName(token);
             if (string.IsNullOrEmpty(userName))
@@ -461,7 +461,7 @@ namespace IoTCenter.Controllers
                 {
                     var api = device.Product.Apis.FirstOrDefault(o => o.Command == command);
                     var message = $"{api.Path}{api.Command}?number={device.Number}";
-                    this._hub.Clients.Group(device.Node.Number).SendAsync(Methods.ServerToClient, Methods.ExecApiRequest, message, connectionId);
+                    this._hub.ServerToClient(Methods.ExecApiRequest, message, device.Node.Number, connectionId);
                 }
                 catch (Exception ex)
                 {
diff --git a/projects/IoTCenter/appsettings.json b/projects/IoTCenter/appsettings.json
index f74900b6..6a922e7e 100644
--- a/projects/IoTCenter/appsettings.json
+++ b/projects/IoTCenter/appsettings.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.0.0-rc.103",
+  "version": "1.0.0-rc.104",
   "Logging": {
     "LogLevel": {
       "Default": "Warning",
diff --git a/projects/IoTClient/Assets/StreamingAssets/wwwroot/user.html b/projects/IoTClient/Assets/StreamingAssets/wwwroot/user.html
index 34f3ab6f..c7a1f66d 100644
--- a/projects/IoTClient/Assets/StreamingAssets/wwwroot/user.html
+++ b/projects/IoTClient/Assets/StreamingAssets/wwwroot/user.html
@@ -37,6 +37,7 @@
                             <button class="col button" type="submit" v-on:click="logout">退出</button>
                         </div>
                     </div>
+                    <div>v {{version}}</div>
                     <f7-toolbar tabbar labels position="bottom">
                         <a href="index.html" class="tab-link external">
                             <i class="icon icon f7-icons">house</i>
diff --git a/projects/IoTClient/iotclient.apk.REMOVED.git-id b/projects/IoTClient/iotclient.apk.REMOVED.git-id
index 59b2d1fe..fd34c3b8 100644
--- a/projects/IoTClient/iotclient.apk.REMOVED.git-id
+++ b/projects/IoTClient/iotclient.apk.REMOVED.git-id
@@ -1 +1 @@
-a1f050f1d4d523789cd185a274a199295c7f02d5
\ No newline at end of file
+25f978cc1dc22e8729d0400a5d8b6b66728855d5
\ No newline at end of file
diff --git a/projects/IoTNode/appsettings.json b/projects/IoTNode/appsettings.json
index 6930198b..0c2e8998 100644
--- a/projects/IoTNode/appsettings.json
+++ b/projects/IoTNode/appsettings.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.0.0-rc.103",
+  "version": "1.0.0-rc.104",
   "Logging": {
     "LogLevel": {
       "Default": "Warning",