diff --git a/.env.development b/.env.development
index 01bce7c..f045ce7 100644
--- a/.env.development
+++ b/.env.development
@@ -4,4 +4,4 @@ VITE_APP_TITLE = 智汇管理系统
 VITE_APP_ENV = 'development'
 
 # 智汇管理系统/开发环境
-VITE_APP_BASE_API = 'http://192.168.1.5:8081'
+VITE_APP_BASE_API = 'http://192.168.1.6:8081'
diff --git a/src/utils/ws.js b/src/utils/ws.js
index a09c6cf..47e2e45 100644
--- a/src/utils/ws.js
+++ b/src/utils/ws.js
@@ -32,6 +32,7 @@ function buildWsUrl() {
 }
 
 export function connectWs(onMessage) {
+  console.trace('connectWs called')
   if (!getToken()) {
     console.warn('[WebSocket] missing token')
     return
@@ -73,10 +74,20 @@ export function connectWs(onMessage) {
     })
   }
 
-  ws.onclose = () => {
-    console.log('[WebSocket] closed')
+  ws.onclose = (event) => {
+    console.log('[WebSocket] closed', { code: event.code, reason: event.reason })
     ws = null
 
+    if (isNonRetryableClose(event)) {
+      console.warn('[WebSocket] stop reconnect because close reason is not retryable', {
+        code: event.code,
+        reason: event.reason
+      })
+      retryCount = 0
+      clearReconnectTimer()
+      return
+    }
+
     if (!manualClose && subscribers.size > 0) {
       reconnectTimer = setTimeout(() => {
         console.log('[WebSocket] reconnecting')
@@ -153,3 +164,12 @@ function clearReconnectTimer() {
     reconnectTimer = null
   }
 }
+
+function isNonRetryableClose(event) {
+  const reason = (event?.reason || '').toLowerCase()
+  return (
+    reason.includes('invalid token') ||
+    reason.includes('missing token') ||
+    reason.includes('deptid is null')
+  )
+}
diff --git a/src/views/index.vue b/src/views/index.vue
index 14f7573..753b6eb 100644
--- a/src/views/index.vue
+++ b/src/views/index.vue
@@ -184,6 +184,7 @@
 import { computed, onBeforeUnmount, onMounted, reactive, ref } from 'vue'
 import { useRouter } from 'vue-router'
 import { closeWs, connectWs } from '@/utils/ws'
+import { getToken } from '@/utils/auth'
 import {
   getHomeAlarmStat,
   getHomeAlarmTrend,
@@ -752,6 +753,14 @@ function pushRealtimeAlarm(event) {
 
 onMounted(() => {
   loadHomeData()
+
+  const token = getToken()
+
+  if (!token || token === 'undefined' || token === 'null' || token.length < 30) {
+    console.warn('[Home] token无效，不连接WebSocket')
+    return
+  }
+
   connectWs(handleWsMessage)
 })