Problem uploading files with different Internet speeds

We are facing a problem with the trial version of VOD steaming
We have followed the instructions on the following guideline

https://www.wowza.com/docs/how-to-do-adaptive-bitrate-streaming
But still have problems with different internet speeds

We need a step by step instruction on how to upload a film with different qualities
In this instruction it has to be clarified why each section is created , by whom or what system.
How it can be updated and what are the ways to delete it

Perhaps @Karel Boek-Senior Consultant can offer some assistance. He is our Wowza Senior Consultant in this forum.

Thanks @Rose Power-Wowza Community Manager

@Karel Boek-Senior Consultant Help!! Our VOD reputation is at stake!!