diff --git a/Realtime/Realtime/Internal/Connection/LCConnection.cs b/Realtime/Realtime/Internal/Connection/LCConnection.cs
index 2f11347..db350b7 100644
--- a/Realtime/Realtime/Internal/Connection/LCConnection.cs
+++ b/Realtime/Realtime/Internal/Connection/LCConnection.cs
@@ -114,29 +114,11 @@ namespace LeanCloud.Realtime.Internal.Connection {
                 heartBeat.Start();
                 state = State.Open;
             } catch (Exception e) {
+                state = State.Closed;
                 throw e;
             }
         }
 
-        /// <summary>
-        /// 重置连接
-        /// </summary>
-        /// <returns></returns>
-        internal async Task Reset() {
-            state = State.Closed;
-            heartBeat?.Stop();
-            // 关闭就连接
-            await ws.Close();
-            // 重新创建连接组件
-            heartBeat = new LCHeartBeat(this, OnPingTimeout);
-            router = new LCRTMRouter();
-            ws = new LCWebSocketClient {
-                OnMessage = OnClientMessage,
-                OnClose = OnClientDisconnect
-            };
-            await Reconnect();
-        }   
-
         /// <summary>
         /// 发送请求，会在收到应答后返回
         /// </summary>
@@ -171,15 +153,21 @@ namespace LeanCloud.Realtime.Internal.Connection {
         }
 
         /// <summary>
-        /// 关闭连接
+        /// 断开连接
         /// </summary>
-        /// <returns></returns>
-        internal async Task Close() {
-            LCRealtime.RemoveConnection(this);
+        private void Disconnect() {
+            state = State.Closed;
             heartBeat.Stop();
-            await ws.Close();
+            _ = ws.Close();
+            foreach (LCIMClient client in idToClients.Values) {
+                client.HandleDisconnected();
+            }
         }
 
+        /// <summary>
+        /// 消息接收回调
+        /// </summary>
+        /// <param name="bytes"></param>
         private void OnClientMessage(byte[] bytes) {
             try {
                 GenericCommand command = GenericCommand.Parser.ParseFrom(bytes);
@@ -207,7 +195,7 @@ namespace LeanCloud.Realtime.Internal.Connection {
                     if (command.Cmd == CommandType.Echo) {
                         heartBeat.Pong();
                     } else if (command.Cmd == CommandType.Goaway) {
-                        _ = Reset();
+                        Reset();
                     } else {
                         // 通知
                         if (idToClients.TryGetValue(command.PeerId, out LCIMClient client)) {
@@ -221,23 +209,35 @@ namespace LeanCloud.Realtime.Internal.Connection {
             }
         }
 
+        /// <summary>
+        /// 连接断开回调
+        /// </summary>
         private void OnClientDisconnect() {
-            state = State.Closed;
-            heartBeat.Stop();
-            foreach (LCIMClient client in idToClients.Values) {
-                client.HandleDisconnected();
-            }
-            // 重连
+            Disconnect();
             _ = Reconnect();
         }
 
+        /// <summary>
+        /// Pong 超时回调
+        /// </summary>
         private void OnPingTimeout() {
-            state = State.Closed;
-            _ = ws.Close();
-            foreach (LCIMClient client in idToClients.Values) {
-                client.HandleDisconnected();
-            }
-            // 重连
+            Disconnect();
+            _ = Reconnect();
+        }
+
+        /// <summary>
+        /// 重置连接
+        /// </summary>
+        /// <returns></returns>
+        internal void Reset() {
+            Disconnect();
+            // 重新创建连接组件
+            heartBeat = new LCHeartBeat(this, OnPingTimeout);
+            router = new LCRTMRouter();
+            ws = new LCWebSocketClient {
+                OnMessage = OnClientMessage,
+                OnClose = OnClientDisconnect
+            };
             _ = Reconnect();
         }
 
@@ -289,7 +289,8 @@ namespace LeanCloud.Realtime.Internal.Connection {
         internal void UnRegister(LCIMClient client) {
             idToClients.Remove(client.Id);
             if (idToClients.Count == 0) {
-                _ = Close();
+                Disconnect();
+                LCRealtime.RemoveConnection(this);
             }
         }
 
@@ -297,14 +298,14 @@ namespace LeanCloud.Realtime.Internal.Connection {
         /// 暂停连接
         /// </summary>
         internal void Pause() {
-
+            Disconnect();
         }
 
         /// <summary>
         ///  恢复连接
         /// </summary>
         internal void Resume() {
-
+            _ = Reconnect();
         }
     }
 }
diff --git a/Realtime/Realtime/LCRealtime.cs b/Realtime/Realtime/LCRealtime.cs
index 6f579a4..612650e 100644
--- a/Realtime/Realtime/LCRealtime.cs
+++ b/Realtime/Realtime/LCRealtime.cs
@@ -34,14 +34,18 @@ namespace LeanCloud.Realtime {
         /// 主动断开所有 RTM 连接
         /// </summary>
         public static void Pause() {
-
+            foreach (LCConnection connection in appToConnections.Values) {
+                connection.Pause();
+            }
         }
 
         /// <summary>
         /// 主动恢复所有 RTM 连接
         /// </summary>
         public static void Resume() {
-
+            foreach (LCConnection connection in appToConnections.Values) {
+                connection.Resume();
+            }
         }
     }
 }
diff --git a/Sample/RealtimeApp/Program.cs b/Sample/RealtimeApp/Program.cs
index 01ef348..1680362 100644
--- a/Sample/RealtimeApp/Program.cs
+++ b/Sample/RealtimeApp/Program.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 using LeanCloud;
 using LeanCloud.Realtime;
 
@@ -7,15 +8,43 @@ using static System.Console;
 namespace RealtimeApp {
     class Program {
         static void Main(string[] args) {
-            Console.WriteLine("Hello World!");
+            WriteLine("Hello World!");
 
             SingleThreadSynchronizationContext.Run(async () => {
                 LCLogger.LogDelegate += Print;
                 LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
 
-                LCIMClient client = new LCIMClient("lean");
+                LCIMClient client = new LCIMClient("lean") {
+                    OnPaused = () => {
+                        WriteLine("~~~~~~~~~~~~~~~ disconnected");
+                    },
+                    OnResume = () => {
+                        WriteLine("~~~~~~~~~~~~~~~ reconnected");
+                    }
+                };
+
                 await client.Open();
-                //await client.Close();
+
+                int count = 0;
+                while (count < 2) {
+                    WriteLine($"pause : {count}");
+
+                    await Task.Delay(5 * 1000);
+                    LCRealtime.Pause();
+
+                    await Task.Delay(5 * 1000);
+                    LCRealtime.Resume();
+
+                    await Task.Delay(5 * 1000);
+                    count++;
+                }
+
+                try {
+                    await client.Close();
+                    // Done
+                } catch (Exception e) {
+                    WriteLine($"xxxxxxxxxxxx {e.Message}");
+                }
             });
         }