diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 2408965..77f1044 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,7 +3,9 @@
     package="fun.kitsunebi.kitsunebi4android">
 
     <uses-permission android:name="android.permission.INTERNET"/>
-    <!--<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />-->
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
 
     <application
         android:allowBackup="true"
diff --git a/app/src/main/java/fun/kitsunebi/kitsunebi4android/KitsunebiVpnService.kt b/app/src/main/java/fun/kitsunebi/kitsunebi4android/KitsunebiVpnService.kt
index a99ba90..da6f55c 100644
--- a/app/src/main/java/fun/kitsunebi/kitsunebi4android/KitsunebiVpnService.kt
+++ b/app/src/main/java/fun/kitsunebi/kitsunebi4android/KitsunebiVpnService.kt
@@ -25,36 +25,36 @@ open class KitsunebiVpnService: VpnService() {
     private var buffer = ByteBuffer.allocate(1501)
     var isStopped = false
     
-//    private val cm by lazy { this.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager }
-//
-//    @TargetApi(28)
-//    private var underlyingNetwork: Network? = null
-//        @TargetApi(28)
-//        set(value) {
-//            setUnderlyingNetworks(if (value == null) null else arrayOf(value))
-//            field = value
-//        }
-//
-//    companion object {
-//        @TargetApi(28)
-//        private val defaultNetworkRequest = NetworkRequest.Builder()
-//                .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
-//                .addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
-//                .build()
-//    }
-//
-//    @TargetApi(28)
-//    private val defaultNetworkCallback = object : ConnectivityManager.NetworkCallback() {
-//        override fun onAvailable(network: Network) {
-//            underlyingNetwork = network
-//        }
-//        override fun onCapabilitiesChanged(network: Network, networkCapabilities: NetworkCapabilities?) {
-//            underlyingNetwork = network
-//        }
-//        override fun onLost(network: Network) {
-//            underlyingNetwork = null
-//        }
-//    }
+    private val cm by lazy { this.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager }
+
+    @TargetApi(28)
+    private var underlyingNetwork: Network? = null
+        @TargetApi(28)
+        set(value) {
+            setUnderlyingNetworks(if (value == null) null else arrayOf(value))
+            field = value
+        }
+
+    companion object {
+        @TargetApi(28)
+        private val defaultNetworkRequest = NetworkRequest.Builder()
+                .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+                .addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
+                .build()
+    }
+
+    @TargetApi(28)
+    private val defaultNetworkCallback = object : ConnectivityManager.NetworkCallback() {
+        override fun onAvailable(network: Network) {
+            underlyingNetwork = network
+        }
+        override fun onCapabilitiesChanged(network: Network, networkCapabilities: NetworkCapabilities?) {
+            underlyingNetwork = network
+        }
+        override fun onLost(network: Network) {
+            underlyingNetwork = null
+        }
+    }
 
     data class Config(val outbounds: List<Outbound>? = null,
                       val outboundDetour: List<Outbound>? = null,
@@ -112,7 +112,7 @@ open class KitsunebiVpnService: VpnService() {
             n?.let { it } ?: return
             if (n > 0) {
                 buffer.limit(n)
-                tun2socks.Tun2socks.inputPacket(buffer.array())
+                Tun2socks.inputPacket(buffer.array())
                 buffer.clear()
             }
         }
@@ -169,9 +169,9 @@ open class KitsunebiVpnService: VpnService() {
                 return@thread
             }
 
-//            if (Build.VERSION.SDK_INT >= 28) {
-//                cm.requestNetwork(defaultNetworkRequest, defaultNetworkCallback)
-//            }
+            if (Build.VERSION.SDK_INT >= 28) {
+                cm.requestNetwork(defaultNetworkRequest, defaultNetworkCallback)
+            }
 
             inputStream = FileInputStream(pfd!!.fileDescriptor)
             outputStream = FileOutputStream(pfd!!.fileDescriptor)