|Do other sites load ok? for example can you see Google?|
If you can see Google I would suggest trying a different browser such as Chrome, or FireFox.
Also, what Internet Security Software are you using? i.e. Symantec / Norton, AVG, McAfee? Some programs will block sites which are deemed to be unsafe. Try disabling the software and trying again.
Finally, try restarting the router.
Hope this helps.
Eitex IT Support