Note that the httpbinding resource on port 7335 expects HTTP or HTTPS connections (exclusively) depending on the 'Enable Web Client to IM/P Service Secure Mode' setting under System/Security/Settings in the IM&P web admin UI. Make sure you are attempting to connect via HTTP (unchecked) or HTTPS (checked.)
I have the following services enabled on my working IM&P server: ![Screenshot from 2016-12-19 09-45-12.png](/legacyfs/online/fusion/103339_Screenshot from 2016-12-19 09-45-12.png)