If you've recently done a Windows update it sometimes likes to turn the Windows Firewall on by default. Just in case, you may want to try turning it off temporarily to see if that makes any difference. Directions from Microsoft can be found here: http://windows.microsoft.com/is-IS/w...wall-on-or-off
If you're still experiencing an issue, you'll want to quickly run down the connection issue steps to see if there's anything you can do in the meantime. Failing that, feel free to contact the Support Center for further technical help by choosing the contact option from the Support Site.