diff --git a/app/src/main/java/com/fongmi/android/tv/api/config/VodConfig.java b/app/src/main/java/com/fongmi/android/tv/api/config/VodConfig.java
index c3bc3ca24..f5ad68694 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/config/VodConfig.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/config/VodConfig.java
@@ -105,7 +105,7 @@ public class VodConfig {
         this.flags.clear();
         this.parses.clear();
         this.loadLive = true;
-        BaseLoader.get().clear();
+        App.execute(() -> BaseLoader.get().clear());
         return this;
     }
 
diff --git a/app/src/main/java/com/fongmi/android/tv/api/loader/JarLoader.java b/app/src/main/java/com/fongmi/android/tv/api/loader/JarLoader.java
index e5d0bcde2..564abd6af 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/loader/JarLoader.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/loader/JarLoader.java
@@ -36,7 +36,7 @@ public class JarLoader {
     }
 
     public void clear() {
-        for (Spider spider : spiders.values()) App.execute(spider::destroy);
+        spiders.values().forEach(Spider::destroy);
         loaders.clear();
         methods.clear();
         spiders.clear();
diff --git a/app/src/main/java/com/fongmi/android/tv/api/loader/JsLoader.java b/app/src/main/java/com/fongmi/android/tv/api/loader/JsLoader.java
index de503a8c4..3d69259c7 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/loader/JsLoader.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/loader/JsLoader.java
@@ -17,7 +17,7 @@ public class JsLoader {
     }
 
     public void clear() {
-        for (Spider spider : spiders.values()) App.execute(spider::destroy);
+        spiders.values().forEach(Spider::destroy);
         spiders.clear();
     }
 
diff --git a/app/src/main/java/com/fongmi/android/tv/api/loader/PyLoader.java b/app/src/main/java/com/fongmi/android/tv/api/loader/PyLoader.java
index 9c9807e9d..2bb6314ef 100644
--- a/app/src/main/java/com/fongmi/android/tv/api/loader/PyLoader.java
+++ b/app/src/main/java/com/fongmi/android/tv/api/loader/PyLoader.java
@@ -20,7 +20,7 @@ public class PyLoader {
     }
 
     public void clear() {
-        for (Spider spider : spiders.values()) App.execute(spider::destroy);
+        spiders.values().forEach(Spider::destroy);
         spiders.clear();
     }
 
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/CastDialog.java b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/CastDialog.java
index e34236c59..baf6fd133 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/CastDialog.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/CastDialog.java
@@ -145,9 +145,9 @@ public class CastDialog extends BaseDialog implements DeviceAdapter.OnClickListe
     private void onRefresh() {
         adapter.clear(() -> {
             Device.delete();
+            if (fm) scanTask.start();
             DLNADevice.get().disconnect();
             DLNACastManager.INSTANCE.search(null);
-            if (fm) scanTask.start(adapter.getIps());
         });
     }
 
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/SyncDialog.java b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/SyncDialog.java
index 19e61613c..7e316d1f7 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/SyncDialog.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/SyncDialog.java
@@ -143,7 +143,7 @@ public class SyncDialog extends BaseDialog implements DeviceAdapter.OnClickListe
     private void onRefresh() {
         adapter.clear(() -> {
             Device.delete();
-            scanTask.start(adapter.getIps());
+            scanTask.start();
         });
     }
 
diff --git a/app/src/mobile/java/com/fongmi/android/tv/utils/ScanTask.java b/app/src/mobile/java/com/fongmi/android/tv/utils/ScanTask.java
index 155ad6195..1d4527749 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/utils/ScanTask.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/utils/ScanTask.java
@@ -27,8 +27,8 @@ public class ScanTask {
         this.listener = listener;
     }
 
-    public void start(List<String> ips) {
-        App.execute(() -> run(getUrl(ips)));
+    public void start() {
+        App.execute(() -> run(getUrl()));
     }
 
     public void start(String url) {
@@ -61,8 +61,8 @@ public class ScanTask {
         for (String url : urls) executor.execute(() -> findDevice(url));
     }
 
-    private List<String> getUrl(List<String> ips) {
-        Set<String> urls = new HashSet<>(ips);
+    private List<String> getUrl() {
+        Set<String> urls = new HashSet<>();
         String local = Server.get().getAddress();
         String base = local.substring(0, local.lastIndexOf(".") + 1);
         for (int i = 1; i < 256; i++) urls.add(base + i + ":9978");