Hi Sanat,
This could be caused by a Hotspot Shield driver installed into the network connection. Let us try and resolve the issue. Kindly follow the steps below:
- Open Network Connections by clicking the Start button,
- Choose Control Panel
- Select Network and Internet,
- Click on Network and Sharing Center, and then choose Manage network connections.
- Under Manage network connections page, right click the connection that you are using and select Properties.
- Restart the computer and check if it worked.
Since this is a connectivity issue, we also recommend that you contact your Internet service provider technical support.