The server may not be accepting connections or may be busy. Try connecting again later. This message means that you have both a good address and the server is, in fact, working at this time. However, you might be seeing this error message more and more often in the future. Some Web pages are extremely popular.
Most Web pages can only handle so much traffic at the same time.
It has been my experience that if you get this message, if you are persistent and keep trying the same link over and over, you will eventually get through. If you have to get an error message, this is the best of the four to get. You are the th being to visit this page.