samba - Aug 2005 - wbinfo can not convert User names and Group name to SID

Hi there,

 I've been fighting with winbind for over 4 hours now and read every
related article I found on google to no avail. A server of mine
rebooted due to power outage today and a perfectly running winbind +
AD setup, wbinfo can now no longer convert user names or group names
to SID or vica versa. The weird part is that the built-in groups work
just fine.

[root@ncmfw samba]# wbinfo -n "BUILTIN/System Operators"
S-1-5-32-549 Well-known Group (5)

[root@ncmfw samba]# wbinfo -n Engineers
Could not lookup name Engineers

[root@ncmfw samba]# getent group |grep Engineers
Engineers:x:10018:

[root@ncmfw samba]# wbinfo -G 10018
S-1-5-21-3139104342-3182081393-1008461833-2114

[root@ncmfw samba]# wbinfo -s S-1-5-21-3139104342-3182081393-1008461833-2114
Could not lookup sid S-1-5-21-3139104342-3182081393-1008461833-2114


 After I upgraded samba to 3.0.10 everything seemed to work for a
while, however after I restarted winbind - the problems started again.
 Now user-to-SID and vica versa works fine, but group-to-SID still
does not.

 Has anybody experience a similar problem ?