How to connect with linux mint to to wifi wpa2 enterprise with default radius server configuration?

I tried to connect to WiFi with WPA2 enterprise authentication to default radius server configuration with Linux mint 19.2 but I can't. I set security to WPA2 enterprise, authentication to TTLS, I checked the No CA certification, Inner authentication MSCHAPv2 and correct username and password. I tried this with Ubuntu and fedora gnome version and there was no problem and They were successfully connected.