Hello all, First off, let me say I've been using Samba successfully since '98. Except for a few minor issues here and there it's worked quite well. So, thank you for an excellent product. Last weekend I migrated an existing Samba file/print server to a brand new server. This included upgrading Samba from 3.0.7 to 3.0.14a. I've successfully been using winbind to authenticate to Windows 2000 and then Windows 2003 AD domains (DOMAIN security mode, not ADS) for 2-3 years now. So, in order to maintain the existing domain account to UID mappings I moved the winbindd_*.tdb files from the old to the new server. (In case it matters, I actually moved all of the .tdb files from the old to the new.) This seemed to work just fine until I started modifying users' group memberships in AD. It seems winbind is not registering group membership modifications. It either doesn't register the updates at all, or not in a timely fashion(as in it finally changed overnight for one account, but not the other). In case it matters, winbindd cache is set to 30 seconds. I used to have it set to 600 seconds, but changed it when I started experiencing this issue. The new server is running RedHat Enterprise Linux 4 ES. Samba was built from the redhat source RPM from the samba site. I have also seen the same behavior on Samba version 3.0.15pre2. Obviously this is a showstopper as I cannot appropriately change users' access to resources. Is this a known problem? Is there a workaround? Let me know if more information is required. Thanks. Sven M. Ruth Sr. Analyst - Technology Resources LandAmerica - Chicago Area Ph: 312-558-1600 ext. 3023 "We are all born originals -- why is it so many of us die copies?" -- Edward Young