Hi, I am working with samba-3.0alpha20, and suddenly, one of the users could not log in to the system. I worked with `wbinfo' and `id' (I am working as security=daemon, using winbind in nsswitch.conf). Here is what failed for `us2': # id NTDOM\\us2 uid=10003 gid=10000(NTDOM\Domain Users) groups=10000(NTDOM\Domain Users) /*<== pay attention that there is no username in parentheses after the uid */ # wbinfo -s S-1-5-21-1789293116-3789330910-3885930141-1150 Could not lookup sid S-1-5-21-1789293116-3789330910-3885930141-1150 And here is what worked for `us3': # id NTDOM\\us3 uid=10000(NTDOM\us3) gid=10000(NTDOM\Domain Users) groups=10000(NTDOM\Domain Users) # wbinfo -s S-1-5-21-1789293116-3789330910-3885930141-1151 NTDOM\us3 1 All other wbinfo conversions (name to sid, sid to uid etc.) worked fine. I was also able to list all domain users (wbinfo -u). What I saw in the logs (log.winxp) was the following line: [2003/07/13 12:21:19, 0] auth/auth_util.c:get_user_groups_from_local_sam(670) Couldn't find passdb structure for UID = 10003 ! Aborting. After 80 minutes, the issue was resolved by itself (I have `winbind cache time = 15'). Any ideas? Thanks, --yuval