Anyone out there understand dns routers hosts files etc?

I'm seriously at the point of throwing my laptop and router through a window. I've spent three days trying to set up a couple of things and nothing is working as it should.

Please pm if you can help....

Did you get your computer problems sorted? My husband works in IT and may be able to help you.

I PM'd a while back and have had no reply yet, so I assume Kate is busy.