WebDav not working after migration

Hi,

I migrated our owncloud v8 to nextcloud v9.
WebDav does not seem to work anymore.

When mapping a drive, this happens:

Result in browser:

When deleting username from URL:

I tried using both /remote.php/webdav (owncloud) and /remote.php.
/dav/files (nextcloud) paths but no difference.
Any ideas?

Thanks

NC webdav path ist .../remote.php/webdav/
Also check this out: [Solved] WebDAV Problems with Windows Explorer on Windows 10
Could be that TLS is not supported by windows.

Also your first screenshot path is not similar to second screenshot where you getting an error.