diff --git a/src/components/operate/realTimeMsg.vue b/src/components/operate/realTimeMsg.vue
index 93eb362..e1ebcdc 100644
--- a/src/components/operate/realTimeMsg.vue
+++ b/src/components/operate/realTimeMsg.vue
@@ -280,9 +280,16 @@ const selectMountpoint = async (selectedMountpoint) => {
   await sizeConnect();
 };
 
+const disconnect = async () => {
+  if (caster) {
+    caster.disconnect();
+  }
+};
+
 const connect = async () => {
   try {
     setPassword();
+    disconnect();
     // 连接差分数据流
     const connection = await caster.connect(mountpoint.value);
     while (true) {
@@ -326,12 +333,6 @@ const connect = async () => {
   }
 };
 
-const disconnect = async () => {
-  if (caster) {
-    caster.disconnect();
-  }
-};
-
 const saveMsg = (msg) => {
   const data = {
     mountpoint: mountpoint.value,