My Ubuntu 20.04 was working all fine, but all of a sudden I am not able to connect to my wifi as it is keeps on asking me for the wifi password again and again.
I tried to remove the wifi password in my phone and make it public, and the open wifi was possible to connect, but I can't remove the password of my ISP wifi modem.
I tried so many fixes in different answers of this website, but I had no luck.
This is the image of the pop-up.
