Nextcloud Client Assistant not working properly

[arnobel]

When i install the latest 2.6.x client in OSX Catalina (latest updates done) i can put in the server adress

but then i only get this

and can not fill in any checkin data to connect , what s?

[rakekniven]

See [Solved] Couldn't connect to server and didn't get any error messages

Closing this as a dup.