Can't login from WIndows Server 2012 R2 Essentials

Hi,

im trying to mount a samba share on my Windows 2012 R2 Server. The share is provided by Openmediavault (1.0).

My
problem is that every try to log in fails. The username and password is
provided by copy and paste to make sure that there are no typos.
The login data works when I connect to my NAS from a Win7 PC.

All my SMB-log files are empty except of log.nmbd

Zitat

[2014/09/04 19:38:12, 0] nmbd/nmbd_incomingrequests.c:172(process_name_refresh_request)

process_name_refresh_request: unicast name registration request
received for name DOMAIN<00> from IP 192.168.15.52 on subnet
UNICAST_SUBNET.
[2014/09/04 19:38:12, 0] nmbd/nmbd_incomingrequests.c:173(process_name_refresh_request)
Error - should be sent to WINS server

192.168.15.52 is the IP of my Windows 2012 R2 Server.

Any got an idea how to fix this?

tried with name -> doesnt work.
ip -> works!

thanks for the hint!