diff --git a/app/src/main/java/com/jihe/punchnet/PunchnetService.kt b/app/src/main/java/com/jihe/punchnet/PunchnetService.kt
index f36af04..9b9e430 100644
--- a/app/src/main/java/com/jihe/punchnet/PunchnetService.kt
+++ b/app/src/main/java/com/jihe/punchnet/PunchnetService.kt
@@ -40,7 +40,7 @@ import java.io.FileOutputStream
 
 class PunchnetService : VpnService() , IfaceTun {
     private val TAG = "PunchnetService"
-    private val scope = CoroutineScope(Dispatchers.IO)
+    private var scope = CoroutineScope(Dispatchers.IO)
 
     private val routes: MutableList<RouteItem> = mutableListOf()
 
@@ -50,7 +50,7 @@ class PunchnetService : VpnService() , IfaceTun {
     var input: FileInputStream? = null
     var output: FileOutputStream? = null
 
-    override val arpTable = ARPTable(scope)
+    override var arpTable = ARPTable(scope)
     override val arpWaitList = ARPWaitList()
 
     var config: DeviceConfig = DeviceConfig(1400)
@@ -126,11 +126,13 @@ class PunchnetService : VpnService() , IfaceTun {
 
     private fun disconnect() {
         Toast.makeText(this, "stop vpn called", Toast.LENGTH_LONG).show()
+        stopForeground(STOP_FOREGROUND_REMOVE)
         input?.close()
         output?.close()
         vpnDescriptor?.close()
 
-        stopForeground(true)
+        vpnDescriptor = null
+
         stopSelf()
     }
 
@@ -180,8 +182,11 @@ class PunchnetService : VpnService() , IfaceTun {
 
         return if (intent?.action == ACTION_DISCONNECT) {
             scope.cancel()
+            scope = CoroutineScope(Dispatchers.IO)
+            arpTable = ARPTable(scope)
+
             disconnect()
-            START_STICKY
+            START_NOT_STICKY
         } else {
             val argument = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                 intent?.getParcelableExtra("argument", PunchnetServiceArgument::class.java)
@@ -215,6 +220,8 @@ class PunchnetService : VpnService() , IfaceTun {
     override fun onDestroy() {
         // scope.cancel()
         // disconnect()
+        scope.cancel()
+        stopForeground(STOP_FOREGROUND_REMOVE)
         super.onDestroy()
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/jihe/punchnet/sdlan/network/libs.kt b/app/src/main/java/com/jihe/punchnet/sdlan/network/libs.kt
index 8e5ddad..a3350ab 100644
--- a/app/src/main/java/com/jihe/punchnet/sdlan/network/libs.kt
+++ b/app/src/main/java/com/jihe/punchnet/sdlan/network/libs.kt
@@ -440,7 +440,7 @@ suspend fun initTCPConn(
         }
 
         connectingChan?.send(ConnectingState.Connecting)
-        TerminalLogger.debugf {"try connecting..."}
+        TerminalLogger.debugf {"try connecting tcp..."}
 
         val socket: Socket
         try {