From 91adf5ba32c45b83a839d4962fe9a36203a7e27f Mon Sep 17 00:00:00 2001
From: Jonas Kvinge <jonas@jkvinge.net>
Date: Thu, 18 Dec 2025 20:32:07 +0100
Subject: [PATCH] NetworkAccessManager: Handle network state changes after
 system suspend/resume

Fixes #1521
---
 src/core/networkaccessmanager.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/core/networkaccessmanager.cpp b/src/core/networkaccessmanager.cpp
index 817039aee..dfdb2fcaf 100644
--- a/src/core/networkaccessmanager.cpp
+++ b/src/core/networkaccessmanager.cpp
@@ -29,6 +29,7 @@
 #include <QNetworkAccessManager>
 #include <QNetworkRequest>
 #include <QNetworkReply>
+#include <QNetworkInformation>
 
 #include "networkaccessmanager.h"
 #include "threadsafenetworkdiskcache.h"
@@ -41,6 +42,22 @@ NetworkAccessManager::NetworkAccessManager(QObject *parent)
   setRedirectPolicy(QNetworkRequest::NoLessSafeRedirectPolicy);
   setCache(new ThreadSafeNetworkDiskCache(this));
 
+  // Handle network state changes after system suspend/resume
+  // QNetworkInformation provides cross-platform network reachability monitoring in Qt 6
+  if (QNetworkInformation::loadDefaultBackend()) {
+    QNetworkInformation *network_info = QNetworkInformation::instance();
+    if (network_info) {
+      QObject::connect(network_info, &QNetworkInformation::reachabilityChanged, this, [this](QNetworkInformation::Reachability reachability) {
+        if (reachability == QNetworkInformation::Reachability::Online) {
+          // Clear connection cache to force reconnection after network becomes available
+          // This fixes issues after system suspend/resume
+          clearConnectionCache();
+          clearAccessCache();
+        }
+      });
+    }
+  }
+
 }
 
 QNetworkReply *NetworkAccessManager::createRequest(Operation op, const QNetworkRequest &network_request, QIODevice *outgoing_data) {