Click the Search icon (magnifying glass) in the bottom left-hand corner of the screen and type "cmd" into the search bar.
You'll see the Command Prompt app as the best match at the top of the list. Right-click on it and select Run as administrator. Depending on your computer settings, you may be asked to provide an administrator password before you can continue.
A black box with a flashing cursor will open; this is the Command Prompt. Type “netsh winsock reset” and then hit the Enter key on your keyboard.
Wait for the Command Prompt to run through the reset. Once it’s complete, you’ll see the message “Winsock reset completed successfully”.
Restart your computer to finish.
Give this a try and let me know how you go, could just be software related issues