diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
index 0a8f348..0e9affa 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
@@ -138,6 +138,7 @@ class CommonTopBar : LinearLayout {
             mBinding?.fourG?.visibility = GONE
         } else {
             mBinding?.fourG?.visibility = VISIBLE
+            mBinding?.wifi?.visibility = GONE
         }
     }
 
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/WifiHelper.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/WifiHelper.kt
index ab7da75..b4bcd5d 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/WifiHelper.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/WifiHelper.kt
@@ -38,6 +38,7 @@ object WifiHelper {
                     if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
                         if (networkInfo.detailedState == NetworkInfo.DetailedState.DISCONNECTED) {
                             mWifiState = -1
+                            mRssi = -1
                         } else if (networkInfo.detailedState == NetworkInfo.DetailedState.CONNECTED) {
                             mWifiState = WifiManager.WIFI_STATE_ENABLED
                         }