These errors usually indicate a temporary problem. Verify the information below is correct or try your connection the next business day.
Verify System Date/Time Settings.
Update your computer's root certificate list (a solution for Windows XP users only)
If you use Windows XP, and you've tried the solutions above and you still can't connect, you may have an outdated SSL certificate. Windows XP contains an optional system component called Update Root Certificates, which, when necessary, connects to the Microsoft Update web server and downloads certificate updates. If this component is not installed, you need to periodically update the certificate list yourself. Here's how:
Note: Please contact Microsoft customer support if you have any questions about the update program. You can also learn more by reading this Microsoft FAQ: http://support.microsoft.com/kb/931125. Look for the section titled, Root Update Package (intended for Windows XP only).