How to reset wifi settings in Debian (RaspberryPi)?

Question

Raspberry Pi

Good afternoon, I have a Raspberry Pi with Debian and such a trouble, I replaced the network SSID router and left the password as it was before, the laptop and phone connected to the network normally, I didn’t have to re-enter the password. And Raspberry doesn't want to.
But if you change the network name to something else, then Raspberry connects. Reloaded several times.
Apparently something has been preserved somewhere, how can I reset it?

Answer 1

try like this:

1. sudo cp /etc/wpa_supplicant/wpa_supplicant.backup /etc/wpa_supplicant/wpa_supplicant.conf
   
2. sudo service network restart