diff --git a/kded/networkmanagement.notifyrc b/kded/networkmanagement.notifyrc
--- a/kded/networkmanagement.notifyrc
+++ b/kded/networkmanagement.notifyrc
@@ -810,5 +810,6 @@
 Name[x-test]=xxCaptive portal detectedxx
 Name[zh_CN]=检测到强制网络门户
 Name[zh_TW]=偵測到強制入口
+Urgency=Low
 IconName=dialog-password
 Action=Popup
diff --git a/kded/portalmonitor.cpp b/kded/portalmonitor.cpp
--- a/kded/portalmonitor.cpp
+++ b/kded/portalmonitor.cpp
@@ -46,7 +46,7 @@
 {
     if (connectivity == NetworkManager::Portal) {
         NetworkManager::ActiveConnection::Ptr primaryConnection = NetworkManager::primaryConnection();
-        KNotification *notification = new KNotification(QStringLiteral("CaptivePortal"), KNotification::CloseOnTimeout, this);
+        KNotification *notification = new KNotification(QStringLiteral("CaptivePortal"), KNotification::Persistent, this);
         notification->setActions(QStringList{i18n("Log in")});
         notification->setComponentName(QStringLiteral("networkmanagement"));
         if (primaryConnection) {
@@ -56,8 +56,9 @@
         }
         notification->setText(i18n("You need to log in to this network"));
         notification->sendEvent();
-        connect(notification, &KNotification::action1Activated, this, [] () {
+        connect(notification, &KNotification::action1Activated, this, [notification] () {
             QDesktopServices::openUrl(QUrl("http://networkcheck.kde.org"));
+            notification->close();
         });
     }
 }