If you look closely at the featured image you will see the problem exactly. the white building in the background is Westgate Mall (during reconstruction) and in the tree lines you can clearly see an unusual shadow. A shadow that is of a straight line considering that the photo was taken at around 3pm. It was the shadow of an adjacent building to where I was installing the satellite dish. I had feelings that the building would cause a problem since it was like a 15 floors commercial building on Lower Kabete just after Karuna Road junction.
According to the information on dish pointer the building was blocking the line of sight as is evident here.
That thing that looks like a V is actually a very tall building and the green line shows where the satellite is located and using the obstacle or line of sight checker, it was impossible to receive that satellite. I had already installed the dish at the corner most point of the building and it was impossible to move it further.
The height of the building was the biggest challenge. As per the screenshot above if the building was less than 21.4 meters high (h) and the dish away from the building, a distance (d) of less than 50 meters then it would be possible to receive the SES4 Satellite.
One thing I am sure of is that If I was installing the said dish on top of that tall building then I would have been successful.