We have a GitStack installed on Windows 2007 server, and we can use it (create users and repositories) from both localhost and client computer. But when we try to clone a Git repository it git won’t ask username and  just returns a message : “The requested URL returned error: 403″. Cloning a repository on the server, however, works well with authentication (inline and by asking if omitted). Is this more of a firewall/Windows server/etc. -problem or what? Any ideas?