Hi All: When I usign nmblookup to query my domain controller, I got different results: root@Latrell:# nmblookup -A ADDomain.com Looking up status of 169.254.211.91 No reply from 169.254.211.91 root@Latrell:# nmblookup -A ADDomain.com Looking up status of 172.23.26.204 WIN-2003 <00> - M <ACTIVE> WIN <00> - <GROUP> M <ACTIVE> WIN <1c> - <GROUP> M <ACTIVE> WIN-2003 <20> - M <ACTIVE> WIN <1b> - M <ACTIVE> WIN <1e> - <GROUP> M <ACTIVE> WIN <1d> - M <ACTIVE> ..__MSBROWSE__. <01> - <GROUP> M <ACTIVE> MAC Address =3D 00-0A-E4-09-D9-34 The seond output is what I need. The condition is consistent: one correct, one incorrect, etc. The problem happened when my samba server and DC are in different subnet. My samba version is 3.0.21c with kernel 2.4.31. Ad domain is win2003 with sp1. My global settings are as follows: dos charset =3D UTF8 display charset =3D UTF8 unix charset =3D UTF8 server string =3D %h netbios name =3D Latrell wins server =3D 172.23.26.209 write ok =3D yes guest account =3D smbguest map to guest =3D bad user encrypt passwords =3D yes map archive =3D no client use spnego =3D no auth methods =3D guest sam_ignoredomain winbind:ntdomain host msdfs =3D yes winbind use default domain =3D yes workgroup =3D ADDomain security =3D ads password server =3D ADDomain.com * idmap uid =3D 100000-500000 idmap gid =3D 100000-500000 winbind cache time =3D 15 template homedir =3D /tmp/users/home/%D/%U template shell =3D /bin/bash create mask =3D 777 directory mask =3D 777 force create mode =3D 777 force directory mode =3D 777 Thanks, Latrell