I've setup WebDAV feature for IIS and enabled it on my website, setup basic authentacation feature, added a WebDAV rule for the user, granted this user and IIS app pool user required filesystem access rights.
The client connection always return a "401 - unauthorized" error; IIS logs show this:
2017-02-01 06:58:19 W3SVC2 MyServer OPTIONS / - 443 - HTTP/1.1 NetBox/2.4.2+neon/0.30.2 - - myhost.com:443 200 0 0 405 138 234
2017-02-01 06:58:19 W3SVC2 MyServer PROPFIND / - 443 - HTTP/1.1 NetBox/2.4.2+neon/0.30.2 - - myhost.com:443 401 0 5 1541 258 218
So, it seems the problem is that the PROPFIND request fails due to auth error.
Any ideas what am I doing wrong? How can I fix or diagnose it?