Wifi issue Raspberry PI 0

Hey ! I installed Rapsbian via Raspberry pi imager on my Raspberry pi 0. It connected to wifi correctly. Subsequently I tried to activate the access point then from there it was impossible to connect it again to the wifi even after a complete reinstallation of Raspbian as at the beginning. Anyone have an idea? Thank you in advance

I hope you have a more recent OS than Raspbian. And the WiFi signal quality vary so check that first, that it connects doesn't mean that the signal is good enought so it is always is connected.

Regardless of the OS I have exactly the same configuration as before activating the access point, I am next to the router as before also but it no longer connects