I was able to get the button with and without www and also using the raw IP address.
The server is stable it is only how you connect to it is the problem. For best results if you are connecting to the site using a ADSL Router ensure that you have the IP assigned to your phone is in the DMZ client for the Router. When I used this the success rate was more thaN 80%, Also ensure you clear up cookies and cache from your browser for each attempt.