diff --git a/ApplicationLibrary/Views/Dashboard/OverviewView.swift b/ApplicationLibrary/Views/Dashboard/OverviewView.swift
index 7258ebf..059fd75 100644
--- a/ApplicationLibrary/Views/Dashboard/OverviewView.swift
+++ b/ApplicationLibrary/Views/Dashboard/OverviewView.swift
@@ -98,7 +98,7 @@ public struct OverviewView: View {
     }
 
     private nonisolated func serviceReload() async throws {
-        try LibboxNewStandaloneCommandClient()?.serviceReload()
+        try LibboxNewStandaloneCommandClient()!.serviceReload()
     }
 
     private nonisolated func setSystemProxyEnabled(_ isEnabled: Bool) async {
diff --git a/ApplicationLibrary/Views/Dashboard/StartStopButton.swift b/ApplicationLibrary/Views/Dashboard/StartStopButton.swift
index b42a253..6593817 100644
--- a/ApplicationLibrary/Views/Dashboard/StartStopButton.swift
+++ b/ApplicationLibrary/Views/Dashboard/StartStopButton.swift
@@ -1,3 +1,4 @@
+import Libbox
 import Library
 import NetworkExtension
 import SwiftUI
@@ -80,7 +81,16 @@ public struct StartStopButton: View {
                     try await profile.start()
                     await environments.logClient.connect()
                 } else {
+                    var err: Error?
+                    do {
+                        try LibboxNewStandaloneCommandClient()!.serviceClose()
+                    } catch {
+                        err = error
+                    }
                     await profile.stop()
+                    if let err {
+                        throw err
+                    }
                 }
             } catch {
                 await MainActor.run {
diff --git a/Library/Network/ExtensionPlatformInterface.swift b/Library/Network/ExtensionPlatformInterface.swift
index 97f6d8e..2623e4b 100644
--- a/Library/Network/ExtensionPlatformInterface.swift
+++ b/Library/Network/ExtensionPlatformInterface.swift
@@ -262,6 +262,11 @@ public class ExtensionPlatformInterface: NSObject, LibboxPlatformInterfaceProtoc
         }
     }
 
+    public func postServiceClose() {
+        reset()
+        tunnel.postServiceClose()
+    }
+
     public func getSystemProxyStatus() -> LibboxSystemProxyStatus? {
         let status = LibboxSystemProxyStatus()
         guard let networkSettings else {
diff --git a/Library/Network/ExtensionProvider.swift b/Library/Network/ExtensionProvider.swift
index 764100b..41e11fd 100644
--- a/Library/Network/ExtensionProvider.swift
+++ b/Library/Network/ExtensionProvider.swift
@@ -31,7 +31,7 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         var error: NSError?
         LibboxRedirectStderr(FilePath.cacheDirectory.appendingPathComponent("stderr.log").relativePath, &error)
         if let error {
-            writeError("(packet-tunnel) redirect stderr error: \(error.localizedDescription)")
+            writeFatalError("(packet-tunnel) redirect stderr error: \(error.localizedDescription)")
         }
 
         await LibboxSetMemoryLimit(!SharedPreferences.ignoreMemoryLimit.get())
@@ -39,14 +39,14 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         if platformInterface == nil {
             platformInterface = ExtensionPlatformInterface(self)
         }
-        commandServer = try await LibboxNewCommandServer(platformInterface, Int32(SharedPreferences.maxLogLines.get()))
+        commandServer = await LibboxNewCommandServer(platformInterface, Int32(SharedPreferences.maxLogLines.get()))
         do {
             try commandServer.start()
         } catch {
             writeFatalError("(packet-tunnel): log server start error: \(error.localizedDescription)")
             return
         }
-        writeMessage("(packet-tunnel) log server started")
+        writeMessage("(packet-tunnel): Here I stand")
         await startService()
     }
 
@@ -58,17 +58,13 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         }
     }
 
-    func writeError(_ message: String) {
-        writeMessage(message)
-        var error: NSError?
-        LibboxWriteServiceError(message, &error)
-    }
-
     public func writeFatalError(_ message: String) {
         #if DEBUG
             NSLog(message)
         #endif
-        writeError(message)
+        writeMessage(message)
+        var error: NSError?
+        LibboxWriteServiceError(message, &error)
         cancelTunnelWithError(NSError(domain: message, code: 0))
     }
 
@@ -86,7 +82,7 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         }
         let configContent: String
         do {
-            configContent = try await profile.read()
+            configContent = try profile.read()
         } catch {
             writeFatalError("(packet-tunnel) error: read config file \(profile.path): \(error.localizedDescription)")
             return
@@ -94,7 +90,7 @@ open class ExtensionProvider: NEPacketTunnelProvider {
         var error: NSError?
         let service = LibboxNewService(configContent, platformInterface, &error)
         if let error {
-            writeError("(packet-tunnel) error: create service: \(error.localizedDescription)")
+            writeFatalError("(packet-tunnel) error: create service: \(error.localizedDescription)")
             return
         }
         guard let service else {
@@ -105,7 +101,7 @@ open class ExtensionProvider: NEPacketTunnelProvider {
             try service.start()
         } catch {
             commandServer.setService(nil)
-            writeError("(packet-tunnel) error: start service: \(error.localizedDescription)")
+            writeFatalError("(packet-tunnel) error: start service: \(error.localizedDescription)")
             return
         }
         boxService = service
@@ -119,7 +115,7 @@ open class ExtensionProvider: NEPacketTunnelProvider {
             do {
                 try service.close()
             } catch {
-                writeError("(packet-tunnel) error: stop service: \(error.localizedDescription)")
+                writeMessage("(packet-tunnel) error: stop service: \(error.localizedDescription)")
             }
             boxService = nil
             commandServer.setService(nil)
@@ -136,8 +132,13 @@ open class ExtensionProvider: NEPacketTunnelProvider {
             reasserting = false
         }
         stopService()
+        commandServer.resetLog()
         await startService()
     }
+    
+    func postServiceClose() {
+        boxService = nil
+    }
 
     override open func stopTunnel(with reason: NEProviderStopReason) async {
         writeMessage("(packet-tunnel) stopping, reason: \(reason)")
diff --git a/MacLibrary/MenuView.swift b/MacLibrary/MenuView.swift
index ee35ff5..b28e5f3 100644
--- a/MacLibrary/MenuView.swift
+++ b/MacLibrary/MenuView.swift
@@ -201,7 +201,7 @@ public struct MenuView: View {
         }
 
         private nonisolated func serviceReload() async throws {
-            try LibboxNewStandaloneCommandClient()?.serviceReload()
+            try LibboxNewStandaloneCommandClient()!.serviceReload()
         }
     }
 }