Dave Atkin: when i type dcdiag i get a black cmd screen then it hides again..
It happens when i acccess both AD object and groups from another computer directly to the server wich has administrative tools installed.
Ipconfig: Windows IP Configuration
Host Name . . . . . . . . . . . . : server1
Primary Dns Suffix . . . . . . . : adm.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : adm.local
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC7781 Gigabit Server Adapter
Physical Address. . . . . . . . . : 00-1A-4B-B0-DA-A6
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.2
DNS Servers . . . . . . . . . . . : 192.168.0.1
Does this help?