Google problem need help????

I am really hoping that someone can help me with this problem I am having with Google. I can not access google.com or google search, every time I get "this page cannot be displayed". I have tried going to all my setting and making sure that google was not blocked and even called my Internet provider to see if it was a problem on their end but they could not get it back up and running, I even restored my computer to an earlier time when google did work and that did not help. I can access every other site on the net it is just my google that will not work. I also have two computers net worked together and this same error message is on the other computer also. We have run all the spyware and virus protection and it comes up with nothing.

Thanks,
Vickie