Does your computer have the right time? If your computer is not part of a domain, you can synchronize your computer clock with an Internet time server. To do so:

1. Double–click the time on your task bar.
2. Click the Internet Time tab.
3. Select the time server you want to use and make sure to select the Automatically synchronize with an Internet time server check box.

Make sure that you have set the correct date before you attempt to synchronize your clock, because the Internet time server won’t update the time if the date is wrong. If you have a personal or network firewall, you may have to tweak the settings to unblock time synchronization.