Why won't my MacBook connect to Wifi?

Question

macOS

Today I stopped connecting to the Wi-Fi network of my MacBook. Even when transmitting via tethering mode, no connection is made. It gives such a window:

I thought the built-in receiver flew, I decided to check it on the second OS - Windows. WiFi connection is fine there.
What could be the problem?

Answer 1

Did diagnostics. Checked all network settings. Nothing helped. But the problem was solved in a different way.
I had the USB-C -> USB adapter plugged in, pulled it out and all the other cables and reconnected - it worked.

Answer 2

Then check in Makosi if the adapter is seen in the devices.
If so, does it see other SSIDs?

Answer 3

Even in macOS there is a diagnostic tool "Wireless diagnostic", run it - maybe it will show something useful - it will help.