wi fi – Network selection is disabled by WiFi Manager and Wi-Fi continues to disconnect

I discovered that the following WiFi Manager application was the reason:

Wi-Fi Privacy Police (prevention of sensitive data leak on WiFi)

The problem disappears each time I disable this application. Here's how to disable it:

Settings (System) / Memory / Applications Started on Startup / Privacy Policy Wi-Fi / Start on Startup: OFF

You have therefore disabled the automatic start of the application. Now, restart Android.
After the Android restarts, check again the Android Wi-Fi settings: The WIFI MANAGER OFF NETWORK SELECTED MESSAGE error message should be gone.

Wi-Fi Privacy Police was actually a useful app for a long time, until I noticed the worrisome WiFi connection repeatedly interrupted. Below is a screenshot of the functionality of this application:

enter the description of the image here