According to the US FBI many thousands of computers can and /or will lose Internet service in July.
A DNS Virus has been slowly spreading with the sole intent of high jacking your internet service
and redirecting you to la-la land or worse.
DCWG the security partner with the FBI has set up a site ( many sites in multiple languages)
that will scan you computer, tell you if you are infected and tell you how to fix it.
Please take alook here, it's free...before July