Great work @eisaev
I followed your instructions and the improvements in WIFI signal are massive.
Thank you very much for your work.
PS: I use Windows, I made the whole process using Windows Terminal with Git BASH interpreter and had ZERO issues during the whole process
EDIT: Is there any way to block api.miwifi.com at router level? I tried blocking the host in /etc/hosts file but the file is overritten on every reboot