I can't enter the password for my network

Hello everybody

If I want to enter my password in a box for my wifi network of a a95 max I can't confirm it with an enter or something like that.

I don't know how to do this to finalize and confirm my password.
I also see that the icon of wifi for the entire network icon is grey and not white.
Ethernet is enabled, I think it should have something to do with that.
How can I disable Ethernet ?

or is it maybe something else

Can anyone suggest a workable solution?

Kind regards and thanks for the help