I have a alife p1 pro, and having this major issue of wifi disconnect when phone sleep, I already check the settings and it is set to "always on" so please don't give me this solution anymore because I have done it many times already, I factory reset the phone many times also, the last thing I did not do is to flash a new rom but your tutorials and download links does not provide enough info on how to do it. And I am not sure if flashing the rom will fix the problem.

What will I do?

how can I root p1 Pro?

this is the drive and tool.
https://mega.nz/#F!XZJVkQ6K!qUwp-HWSiOhxddw00-Vs7A
and the method you can see below.
viewtopic.php?f=54&t=21