diff --git a/src/utils/http.js b/src/utils/http.js
index 90185ee..358ef18 100644
--- a/src/utils/http.js
+++ b/src/utils/http.js
@@ -41,7 +41,10 @@ request.interceptors.response.use(
     } else {
       const message = data?.msg || error.message || '网络错误'
       useUiStore().toast(message)
-      return Promise.reject(new Error(message))
+      const err = new Error(message)
+      err.status = status
+      err.response = error.response
+      return Promise.reject(err)
     }
     return Promise.reject(error)
   }
diff --git a/src/views/MonitorView/MonitorView.vue b/src/views/MonitorView/MonitorView.vue
index 37b4b09..f57e2fd 100644
--- a/src/views/MonitorView/MonitorView.vue
+++ b/src/views/MonitorView/MonitorView.vue
@@ -1390,6 +1390,8 @@ const commandProgress = reactive({
 let commandPollTimer = null
 let commandAutoCloseTimer = null
 let commandPollFails = 0
+let commandPollInFlight = false
+let commandProgressEpoch = 0
 
 function buttonStatusText(title) {
   if (commandProgress.buttonTitle !== title || !commandProgress.status) return '状态：待执行'
@@ -1410,6 +1412,7 @@ function clearCommandTimers() {
 
 function closeCommandProgress() {
   clearCommandTimers()
+  commandProgressEpoch += 1
   commandProgress.open = false
 }
 
@@ -1431,9 +1434,12 @@ function scheduleAutoClose() {
 }
 
 async function pollCommandOnce() {
-  if (!commandProgress.commandId) return
+  if (!commandProgress.commandId || commandPollInFlight) return
+  const epoch = commandProgressEpoch
+  commandPollInFlight = true
   try {
     const cmd = await request.get(urls.COMMAND(commandProgress.commandId))
+    if (epoch !== commandProgressEpoch) return
     commandPollFails = 0
     const meta = applyCommandStatus(cmd)
     if (meta.terminal) {
@@ -1442,8 +1448,9 @@ async function pollCommandOnce() {
       scheduleAutoClose()
     }
   } catch (e) {
+    if (epoch !== commandProgressEpoch) return
     commandPollFails += 1
-    const status = e?.response?.status
+    const status = e?.status ?? e?.response?.status
     if (status === 403 || status === 404 || commandPollFails >= 3) {
       clearInterval(commandPollTimer)
       commandPollTimer = null
@@ -1455,11 +1462,15 @@ async function pollCommandOnce() {
             : (e.message || '进度查询失败')
       scheduleAutoClose()
     }
+  } finally {
+    commandPollInFlight = false
   }
 }
 
 function startCommandProgress(cmd, title, deviceName) {
   clearCommandTimers()
+  commandPollInFlight = false
+  commandProgressEpoch += 1
   commandPollFails = 0
   commandProgress.open = true
   commandProgress.title = title