diff --git a/blivedm/clients/ws_base.py b/blivedm/clients/ws_base.py
index da21755..3387bdb 100644
--- a/blivedm/clients/ws_base.py
+++ b/blivedm/clients/ws_base.py
@@ -232,8 +232,8 @@ class WebSocketClientBase:
             logger.debug('room=%s _network_coroutine() finished', self.room_id)
             self._network_future = None
 
-        if exc is not None and self._handler is not None:
-            self._handler.on_stopped_by_exception(self, exc)
+        if self._handler is not None:
+            self._handler.on_client_stopped(self, exc)
 
     async def _network_coroutine(self):
         """
@@ -454,6 +454,8 @@ class WebSocketClientBase:
 
         :param command: 业务消息
         """
+        if self._handler is None:
+            return
         try:
             # 为什么不做成异步的：
             # 1. 为了保持处理消息的顺序，这里不使用call_soon、create_task等方法延迟处理
diff --git a/blivedm/handlers.py b/blivedm/handlers.py
index c53cea6..9d33b70 100644
--- a/blivedm/handlers.py
+++ b/blivedm/handlers.py
@@ -48,9 +48,9 @@ class HandlerInterface:
     def handle(self, client: ws_base.WebSocketClientBase, command: dict):
         raise NotImplementedError
 
-    def on_stopped_by_exception(self, client: ws_base.WebSocketClientBase, exception: Exception):
+    def on_client_stopped(self, client: ws_base.WebSocketClientBase, exception: Optional[Exception]):
         """
-        当客户端被异常停止时调用。可以在这里close或者重新start
+        当客户端停止时调用。可以在这里close或者重新start
         """