diff --git a/Sources/Punchnet/SDLError.swift b/Sources/Punchnet/SDLError.swift
new file mode 100644
index 0000000..3c95aac
--- /dev/null
+++ b/Sources/Punchnet/SDLError.swift
@@ -0,0 +1,11 @@
+//
+//  SDLError.swift
+//  sdlan
+//
+//  Created by 安礼成 on 2025/8/2.
+//
+
+enum SDLError: Error {
+    case socketClosed
+    case socketError
+}
diff --git a/Sources/Punchnet/SDLNoticeClient.swift b/Sources/Punchnet/SDLNoticeClient.swift
index 44cb4b3..7e5e785 100644
--- a/Sources/Punchnet/SDLNoticeClient.swift
+++ b/Sources/Punchnet/SDLNoticeClient.swift
@@ -47,6 +47,12 @@ actor SDLNoticeClient {
     func start() async throws {
         try await self.asyncChannel.executeThenClose { inbound, outbound in
             try await withThrowingTaskGroup(of: Void.self) { group in
+                group.addTask {
+                    try await self.asyncChannel.channel.closeFuture.get()
+                    NSLog("[UDPHole] channel closed")
+                    throw SDLError.socketClosed
+                }
+                
                 group.addTask {
                     for try await message in self.writeStream {
                         let buf = self.asyncChannel.channel.allocator.buffer(bytes: message)
diff --git a/Sources/Punchnet/SDLSuperClient.swift b/Sources/Punchnet/SDLSuperClient.swift
index 26546d8..ca86c77 100644
--- a/Sources/Punchnet/SDLSuperClient.swift
+++ b/Sources/Punchnet/SDLSuperClient.swift
@@ -9,6 +9,8 @@ import Foundation
 import NIOCore
 import NIOPosix
 
+
+
 // --MARK: 和SuperNode的客户端
 actor SDLSuperClient {
     private let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)
@@ -63,6 +65,7 @@ actor SDLSuperClient {
                 group.addTask {
                     try await self.asyncChannel.channel.closeFuture.get()
                     NSLog("[SDLSuperClient] socket closed")
+                    throw SDLError.socketClosed
                 }
                 
                 group.addTask {
diff --git a/Sources/Punchnet/SDLUDPHole.swift b/Sources/Punchnet/SDLUDPHole.swift
index d58d250..08a649f 100644
--- a/Sources/Punchnet/SDLUDPHole.swift
+++ b/Sources/Punchnet/SDLUDPHole.swift
@@ -60,6 +60,7 @@ actor SDLUDPHole {
                 group.addTask {
                     try await self.asyncChannel.channel.closeFuture.get()
                     NSLog("[UDPHole] channel closed")
+                    throw SDLError.socketClosed
                 }
                 
                 group.addTask {
@@ -83,6 +84,7 @@ actor SDLUDPHole {
                             }
                         } catch let err {
                             SDLLogger.log("[SDLUDPHole] decode message, get error: \(err)", level: .debug)
+                            throw err
                         }
                     }
                 }