I remember got a bug where i tried to connect to my router where it was stuck on configuring interface and kept on repeating the password dialogue. It was a pretty common issue because I googled it to see a lot of posts from different forums by people who had the same issue but I never got a solution from the replies given to any of them. I'm running Kubuntu 20.04 and my network adapter is an Intel Centrino N 1030, I don't see it as a kernel problem because I have many different kernels installed and I use them all frequently. I thought that i would only have that issue but I got an even bigger one. Wifi connections stopped showing at all. Thankfully ethernet is always something that can always save you in this situation and that's how i even posted this. I'm not sure a kernel log or any other kind of log would help but if someone wants to see it then i will show it (I will try to check any time tomorrow, I'm sorry if I take long.) . I am very clueless and I hope someone can solve this. Thank you for trying to help, I appreciate it.

Set your password in the System Settings -> Network -> Connections