Need your help on Piwik Mobile setup


I have setup Piwik on one of our IIS server and it is able to track the websites. I needed to see the same dashboard information on my iPad.

When I gave the URL to Piwik Mobile it shows me an error. However, when I try the same URL on Safari, it works!

I guess its unable to pass the authentication, I have attached the error. Could you please help on how I can make this work.