Could you try this step and let me know if it worked?
Verify the system date on your computer by double-clicking the clock in your system tray. When the Date and Time Properties window opens, confirm the date, time, and time zone are correct. If they are not correct, adjust them in this order:
Disable the option for Internet Explorer to check for server Certificate revocation
Click Start, All Programs, Internet Explorer.
Click Tools, Internet Options.
Select the Advanced Tab.
Navigate to the security section and deselect Check for server Certificate revocation.
Click Apply to save the changes and test.