diff --git a/Tun/Punchnet/Actors/SDLNoticeClientActor.swift b/Tun/Punchnet/Actors/SDLNoticeClientActor.swift
index 7351a9c..c68a9b9 100644
--- a/Tun/Punchnet/Actors/SDLNoticeClientActor.swift
+++ b/Tun/Punchnet/Actors/SDLNoticeClientActor.swift
@@ -22,13 +22,13 @@ import NIOPosix
 actor SDLNoticeClientActor {
     private let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)
     private var channel: Channel?
-    private let remoteAddress: SocketAddress
     private let logger: SDLLogger
+    private let noticePort: Int
     
     // 启动函数
     init(noticePort: Int, logger: SDLLogger) throws {
         self.logger = logger
-        self.remoteAddress = try! SocketAddress(ipAddress: "127.0.0.1", port: noticePort)
+        self.noticePort = noticePort
     }
     
     func start() throws {
@@ -48,10 +48,12 @@ actor SDLNoticeClientActor {
             return
         }
         
-        let buf = channel.allocator.buffer(bytes: data)
-        let envelope = AddressedEnvelope<ByteBuffer>(remoteAddress: self.remoteAddress, data: buf)
-        channel.eventLoop.execute {
-            channel.writeAndFlush(envelope, promise: nil)
+        if let remoteAddress = try? SocketAddress(ipAddress: "127.0.0.1", port: noticePort) {
+            let buf = channel.allocator.buffer(bytes: data)
+            let envelope = AddressedEnvelope<ByteBuffer>(remoteAddress: remoteAddress, data: buf)
+            channel.eventLoop.execute {
+                channel.writeAndFlush(envelope, promise: nil)
+            }
         }
     }
     
diff --git a/Tun/Punchnet/SDLContext.swift b/Tun/Punchnet/SDLContext.swift
index d24b85b..371e0d7 100644
--- a/Tun/Punchnet/SDLContext.swift
+++ b/Tun/Punchnet/SDLContext.swift
@@ -72,7 +72,6 @@ public class SDLContext {
     private var flowTracerCancel: AnyCancellable?
     
     private let logger: SDLLogger
-    private var rootTask: Task<Void, Error>?
     
     public init(provider: NEPacketTunnelProvider, config: SDLConfiguration, rsaCipher: RSACipher, aesCipher: AESCipher, logger: SDLLogger) {
         self.logger = logger
@@ -88,72 +87,29 @@ public class SDLContext {
     }
     
     public func start() async throws {
-        self.rootTask = Task {
-            try await withThrowingTaskGroup(of: Void.self) { group in
-                group.addTask {
-                    while !Task.isCancelled {
-                        do {
-                            try await self.startDnsClient()
-                        } catch let err {
-                            self.logger.log("[SDLContext] UDPHole get err: \(err)", level: .warning)
-                            try await Task.sleep(for: .seconds(2))
-                        }
-                    }
-                }
-                
-                group.addTask {
-                    while !Task.isCancelled {
-                        do {
-                            try await self.startUDPHole()
-                        } catch let err {
-                            self.logger.log("[SDLContext] UDPHole get err: \(err)", level: .warning)
-                            try await Task.sleep(for: .seconds(2))
-                        }
-                    }
-                }
-                                
-//                group.addTask {
-//                    await self.startMonitor()
-//                }
-                
-
-//                group.addTask {
-//                    while !Task.isCancelled {
-//                        do {
-//                            try await self.startNoticeClient()
-//                        } catch let err {
-//                            self.logger.log("[SDLContext] noticeClient get err: \(err)", level: .warning)
-//                            try await Task.sleep(for: .seconds(2))
-//                        }
-//                    }
-//                }
-                
-                try await group.waitForAll()
-            }
-        }
-        
-        try await self.rootTask?.value
-    }
-    
-    public func stop() async {
-        self.rootTask?.cancel()
-        self.udpHoleActor = nil
-        self.noticeClientActor = nil
-
-        self.readTask?.cancel()
-    }
-    
-    private func startNoticeClient() async throws {
-        self.noticeClientActor = try SDLNoticeClientActor(noticePort: self.config.noticePort, logger: self.logger)
-        try await self.noticeClientActor?.start()
-        self.logger.log("[SDLContext] notice_client task cancel", level: .warning)
-    }
-    
-    private func startUDPHole() async throws {
+        // 启动udp服务器
         self.udpHoleActor = try SDLUDPHoleActor(logger: self.logger)
         try await self.udpHoleActor?.start()
+        self.logger.log("[SDLContext] udpHole started")
+
+        // 启动dns服务
+        let dnsSocketAddress = try SocketAddress.makeAddressResolvingHost(self.config.remoteDnsServer, port: 15353)
+        self.dnsClientActor = try await SDLDNSClientActor(dnsServerAddress: dnsSocketAddress, logger: self.logger)
+        try await self.dnsClientActor?.start()
+        self.logger.log("[SDLContext] dnsClient started")
+
+        // 启动noticeClient
+        self.noticeClientActor = try SDLNoticeClientActor(noticePort: self.config.noticePort, logger: self.logger)
+        try await self.noticeClientActor?.start()
+        self.logger.log("[SDLContext] noticeClient started")
         
+        // 启动monitor
+        self.monitor = SDLNetworkMonitor()
+        self.monitor?.start()
+        self.logger.log("[SDLContext] monitor started")
+
         try await withThrowingTaskGroup(of: Void.self) { group in
+            // 处理UDP的事件流
             group.addTask {
                 while true {
                     try Task.checkCancellation()
@@ -172,40 +128,42 @@ public class SDLContext {
                 }
             }
             
+            // 处理DNS的事件流
+            group.addTask {
+                if let packetFlow = self.dnsClientActor?.packetFlow {
+                    for await packet in packetFlow {
+                        let nePacket = NEPacket(data: packet, protocolFamily: 2)
+                        await self.providerActor.writePackets(packets: [nePacket])
+                    }
+                }
+            }
+            
+            // 处理Monitor的事件流
+            group.addTask {
+                for await event in self.monitor!.eventStream {
+                    switch event {
+                    case .changed:
+                        // 需要重新探测网络的nat类型
+                        //self.natType = await self.getNatType()
+                        self.logger.log("didNetworkPathChanged, nat type is: \(self.natType)", level: .info)
+                    case .unreachable:
+                        self.logger.log("didNetworkPathUnreachable", level: .warning)
+                    }
+                }
+            }
+            
             if let _ = try await group.next() {
+                self.logger.log("[SDLContext] taskGroup cancel")
                 group.cancelAll()
             }
         }
-        
     }
     
-    private func startMonitor() async {
-        self.monitor = SDLNetworkMonitor()
-        for await event in self.monitor!.eventStream {
-            switch event {
-            case .changed:
-                // 需要重新探测网络的nat类型
-                //self.natType = await self.getNatType()
-                
-                self.logger.log("didNetworkPathChanged, nat type is: \(self.natType)", level: .info)
-            case .unreachable:
-                self.logger.log("didNetworkPathUnreachable", level: .warning)
-            }
-        }
-    }
-    
-    private func startDnsClient() async throws {
-        let remoteDnsServer = config.remoteDnsServer
-        let dnsSocketAddress = try SocketAddress.makeAddressResolvingHost(remoteDnsServer, port: 15353)
-        self.dnsClientActor = try await SDLDNSClientActor(dnsServerAddress: dnsSocketAddress, logger: self.logger)
-        try await self.dnsClientActor?.start()
-        
-        if let packetFlow = self.dnsClientActor?.packetFlow {
-            for await packet in packetFlow {
-                let nePacket = NEPacket(data: packet, protocolFamily: 2)
-                await self.providerActor.writePackets(packets: [nePacket])
-            }
-        }
+    public func stop() async {
+        self.udpHoleActor = nil
+        self.noticeClientActor = nil
+
+        self.readTask?.cancel()
     }
     
     private func handleUDPHoleReady() async throws {
@@ -532,7 +490,6 @@ public class SDLContext {
     }
     
     deinit {
-        self.rootTask?.cancel()
         self.udpHoleActor = nil
         self.dnsClientActor = nil
     }
diff --git a/tracelog.sh b/tracelog.sh
new file mode 100755
index 0000000..4bacfda
--- /dev/null
+++ b/tracelog.sh
@@ -0,0 +1,3 @@
+#! /bin/sh
+
+log stream --predicate 'subsystem == "com.jihe.punchnet"' --info