Downloading a File with QNetworkAccessManager is 30 Times Slower than It Should Be

[Qrqtow]

This is the code I'm using

	QElapsedTimer* timer = new QElapsedTimer;
	timer->start();
	QNetworkAccessManager* manager = new QNetworkAccessManager;
	QObject::connect(manager, &QNetworkAccessManager::finished,
		this, [=](QNetworkReply* reply)
	{
			cout << timer->elapsed();
		}
	});
	std::string urlS = "https://someUrl/file.zip";
	QNetworkRequest req(QUrl(QString::fromStdString(urlS)));
	manager->get(req);

It takes about 150 seconds to download my file that way, while downloading it any other way (chrome, postman, curl, libcurl) takes 5 seconds. I guess it has something to do with tls because while experimenting I noticed the problem only happens for https requests.

I'm using Qt 6.2.2 on windows and the tls dlls I'm using are the ones that are installed by the qt installer.

[jsulm]

@Qrqtow You should also connect slots to
https://doc.qt.io/qt-5/qnetworkreply.html#error https://doc.qt.io/qt-5/qnetworkaccessmanager.html#sslErrors
https://doc.qt.io/qt-5/qnetworkreply.html#errorOccurred
https://doc.qt.io/qt-5/qnetworkreply.html#sslErrors

Check https://doc.qt.io/qt-5/qnetworkreply.html#error

[Qrqtow]

@jsulm None of them is emitted and the file is downloaded successfully. What else can I try?