Check to make sure that you have a strong internet connection. Since the page allows you to connect to the server, having a faulty or extremely slow connection will not help when trying to connect to the server. Also, please keep in mind that it is not instant- when you open up the page, it could take up to a minute, depending on how fast your internet service is. If you continue to receive the message, your browser may not be working well with the page, thus using a different internet browser would be a good option.