I've got a problem with git and NTLM authentication:
libcurl detects an Authentication problem and it doesn't continue the authentication process.

More in detail:
I type my command line:
git push origin master

• GIT/libcurl contacts the server, asking for url
• server: 401
• GIT asks my credentials
• I type my credentials
• GIT/libcurl contacts the server, asking for url
• server: 401
• GIT/libcurl contacts the server, asking for url
• server: 401
• GIT/libcurl contacts the server, asking for url, NTLMSSP_NEGOTIATE
• server: 401, NTLMSSP_CHALLENGE
• GIT/LibCURL detects an athentication problem.

If I type a command line like the following
curl -u domain\user:password url --ntlm
I get the desired content.
In the network traces, I see that the exchanges looks like

• GET url, NTLMSSP_NEGOTIATE
• server: 401, NTLMSSP_CHALLENGE
• GET url, NTLMSSP_AUTH, user: domain\user
• server: 200

I'm not behind a proxy.
I'm using git for windows, 1.9.2-msysgit.
I'm typing exactly the same credentials, thus this should not constitue a problem.

What am I doing wrong? Is Git supposing something wrong?