rdp's NLA and Smartcard logon

Hi all,

I've got very strange problem with NLA. My setup is rdp connection Win7(client, non domain)->Win7(server, domain member).

NLA on server side is on. It works with password authentication. When I try to authenticate with smart card I got an error - "The remote computer that you are trying to connect to requires Network Level Authentication (NLA), but your Windows domain controller cannot be contacted to perform NLA."

Then I put away NLA and then the authentication by smart card is working ok.

The words about the domain controller are very strange, because the Win7-server can find it when with passwords.

Any ideas ?

Regards