My name is***** will assist you.
I am sorry to hear that you are having this issue.
Try this please>
Select Control Panel from the Menu.
Click the System icon to proceed.
When System and Security is selected from the Control Panel view, select Security.
Click Device Manager from the left hand menu list.
The Device Manager will display all installed and “found” hardware on the computer.
Find the Network Adapters Category and click the "+" to the left.
The Network Interface Controller(NIC) will be listed if installed. Right click the adapter used, select Properties
Navigate to the Driver tab in the NIC Properties.
Selecting the Uninstall button will remove the existing driver from the device manger.
Confirm the Uninstall.
Reboot the computer and reconnect to the internet and try the web sites again please.