Problem: When a user is added to a group on the W2K3, the group is not mapped to the user on the Samba server. System: FreeBSD 5.2.1-RELEASE #0: Mon Feb 23 20:45:55 GMT 2004 Network: Windows 2003 (no SP1) AD Samba Version: Version 3.0.14a Security = ads Kerberos: heimdal-0.6.3_2 Diagnosis: Winbind log shows the following errors: nsswitch/winbindd_user.c:winbindd_getpwuid(238) could not convert uid 10143 to SID wbinfo -r username doesn't show the uid of the new group More info: Samba running on another machine with the same BSD release, heimdal and Samba versions does not exhibit the same problems Troubleshooting: I removed the winbind.tdb files and restarted Samba and then reset the permissions on the files. This had no effect. Any ideas? Mark Irving