diff --git a/src/JT808.Gateway/JT808TcpServer.cs b/src/JT808.Gateway/JT808TcpServer.cs
index c2dd454..fc6ad03 100644
--- a/src/JT808.Gateway/JT808TcpServer.cs
+++ b/src/JT808.Gateway/JT808TcpServer.cs
@@ -114,7 +114,7 @@ namespace JT808.Gateway
                             var pipe = new Pipe();
                             Task writing = FillPipeAsync(session, pipe.Writer);
                             Task reading = ReadPipeAsync(session, pipe.Reader);
-                            await Task.WhenAll(reading, writing);
+                            await Task.WhenAny(reading, writing);
                             SessionManager.RemoveBySessionId(session.SessionID);
                         }, jT808TcpSession);
                     }
@@ -245,7 +245,7 @@ namespace JT808.Gateway
                         }
                         catch (JT808Exception ex)
                         {
-                            Logger.LogError($"[HeaderDeserialize ErrorCode]:{ ex.ErrorCode},[ReaderBuffer]:{data?.ToHexString()},{session.Client.RemoteEndPoint},{session.TerminalPhoneNo}");
+                            Logger.LogError($"[HeaderDeserialize ErrorCode]:{ex.ErrorCode},[ReaderBuffer]:{data?.ToHexString()},{session.Client.RemoteEndPoint},{session.TerminalPhoneNo}");
                         }
                         totalConsumed += seqReader.Consumed - totalConsumed;
                         if (seqReader.End) break;
diff --git a/src/JT808.Gateway/Services/JT808TcpReceiveTimeoutHostedService.cs b/src/JT808.Gateway/Services/JT808TcpReceiveTimeoutHostedService.cs
index 86a4124..370b7a9 100644
--- a/src/JT808.Gateway/Services/JT808TcpReceiveTimeoutHostedService.cs
+++ b/src/JT808.Gateway/Services/JT808TcpReceiveTimeoutHostedService.cs
@@ -4,8 +4,6 @@ using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using System;
-using System.Collections.Generic;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -37,9 +35,17 @@ namespace JT808.Gateway.Services
                 {
                     foreach (var item in SessionManager.GetTcpAll())
                     {
-                        if (item.ActiveTime.AddSeconds(Configuration.TcpReaderIdleTimeSeconds) < DateTime.Now)
+                        try
                         {
-                            item.ReceiveTimeout.Cancel();
+                            if (item.ActiveTime.AddSeconds(Configuration.TcpReaderIdleTimeSeconds) < DateTime.Now)
+                            {
+                                item.ReceiveTimeout.Cancel();
+                            }
+                        }
+                        catch (Exception e)
+                        {
+                            Logger.LogError(e, "Check whether the session with id {id} and sim number {terminal} has timed out and failed.", item.SessionID, item.TerminalPhoneNo);
+                            continue;
                         }
                     }
                     Logger.LogInformation($"[Check Receive Timeout]");