Connecting OneDrive through WebDav

I am trying to connect Onedrive as WebDAV. I am using Url + personal CID and Username and Password authentication, but I only get the red icon (not connected) after I enter the data. I tried https as well with the same results. the url is fine as I can mount onedrive as drive in windows.

I am using Nextcloud 14.0.4 on

The error does not appear in the log.

Any suggestions?