I have two freshly installed OS X Server 10.8.2 and Windows 7 SP1 (all updates to date).
A self signed certificate on the OS X Server generated automatically and working for the exact domain name that the server uses.
I have enabled File Sharing on the OS X Server and sharing only through WebDAV.
What is running perfectly:
The two computers are on the internet, not on the same network. Server is directly on an internet ip and no firewall is running. (i know)
OS X Server having a a properly configured domain and is accesible form the exterior.
I can ping, resolve, reverse dns.
The Windows 7 SP1 install is seeing the server default webpage. Can ping resolve and otherwise interact normally with the OS X Server.
What is not going as planned:
The problem arises when i try to Add a network location in Windows explorer in My computer, i right click and i select Add Network Location.
I put in https://server.mydomain.com/myshare and i click next.
I this point i get asked my credentials TWICE. I enter "admin" for the user and "whatever" for the password. Then an error pops up. No go...
PS. If i do the EXACT same thing on my mac in Finder -> Access -> Connect to server with the exact same address the exact same credentials all is well.