Using the native windows implementation of WebDAV as described in the official documentation:
is failing for you with errors like:
The user g-a-c has pointed out in the following thread:
that the native windows implementation of WebDAV only use an SSLv2 Hello message, and will only negotiate up to TLSv1.0. If you have disabled TLSv1.0 and only using TLSv1.1+ on your server you will get issues like described above.
To workaround this problem pick a better WebDAV implementation like described in the official documentation.