Please Help I don't know what to do?

[Jill]

On my mac book when I use Safari, it keeps telling me "Safari can't connect to server"

The internet is working at my house it works on the other PC's . The Homepage will open, but then I can't go anywhere else without getting Safari can't connect to server.

I really need my mac, this has been going on for 2 weeks already

I have tried everything and it is updated

Are there any other suggestions, or do I need to go buy a new one
Is it possible Safari somehow got corrupted. I added Maverick back in October. I tried reinstalling but it couldn't do it because Safari is not connect to Server.

And I have internet service
I have never had this problem before.

Can't try another server because I have no internet service on the mac