HTTP GET request failes if PC switches from Ethernet to Wi-Fi

QNetworkAccessManager continue using old configuration (in this case Ethernet) even if PC is switched to the Wireless.

Attached example reproduces it:
Steps to reproduce:
1) Disconnect the Wi-Fi from your machine.
2) Make sure only LAN Ethernet cable is connected to your machine and internet is there.
3) Launch the application.
4) Able to see the below messages in application window.
Initiate HTTP GET Request HTTP GET Reply Code: 0 and Name: Unknown error
5) Disconnect the LAN Ethernet cable from your machine and internet will be off.
6) Then you will start seeing below messages.
The specified configuration cannot be used
7) Now connect to Wi-Fi and even then you will see the same messages.
The specified configuration cannot be used