Execution hangs in the QApplication constructor

Execution hangs in the QApplication constructor on a specific machine. The same code in other PC works fine.

This machine is Windows 10. It apparently doesn't have nothing strange.

It happens using Qt5.14.2 and it works fine using Qt5.12.0. (VS2017 x64)

Code:

#include <iostream> // for std::cout
#include <QtWidgets/QApplication>

int main(int argc, char **argv)
{
   std::cout << "Testing ...." << std::endl;
   std::cout << "Before QApplication constructor " << std::endl;
   QApplication app(argc, argv);
   std::cout << "After QApplication constructor " << std::endl;
}

In This Machine: 

C:\> test.exe

Testing ....
Before QApplication constructor 

(It does not return control after 10 minutes)

In Others Machines: 

C:\> test.exe

Testing ....
Before QApplication constructor

After QApplication constructor

(It returns control immediately)