Flow Simulation on a floating wind turbine concept

Hello, So I am currently doing some studies on a concept which is going to be used to hold a wind turbine out in the ocean. Its currently just looking at the floater itself in towing situation. The key things are to study the dynamics of the object going through the water, e.g., drag and lift.

Although, the results I am getting are unusual and not what they should be. My lift is coming out as 1.6+E6 Newtons and drag about 40 kN. Its a cone style shape with the point pointing in the negative y direction. However, when I have a straight cylinder shape so increasing the frontal area and predicating lift would go down, instead it triples in value and goes to around 6+E6 Newtons. 

I have altered all the settings in Wizard, boundary conditions, meshing and so on but is there anything outside of these settings which could be causing such a extreme and inaccurate value?

Edu ​​​​​​​Flow Simulation ​​​​​​​