I have Fedora Directory Server (1.0.4) running on a Red Hat Linux (RHEL 4) with Samba (3.0.10-1.4E.12.2). I have a Windows XP box that I have successfully joined to the domain. When I go to login with a domain user I get the following error: "Windows cannot connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found." In the Windows system event log there is the following entry: "Event Type: Error Event Source: NETLOGON Event Category: None Event ID: 3210 Date: 6/12/2007 Time: 10:08:02 AM User: N/A Computer: WINXP-CLEAN Description: This computer could not authenticate with \\RHEL-CLEAN2, a Windows domain controller for domain FORAYADAMS2, and therefore this computer might deny logon requests. This inability to authenticate might be caused by another computer on the same network using the same name or the password for this computer account is not recognized. If this message appears again, contact your system administrator. For more information, see Help and Support Center at <a href="http://go.microsoft.com/fwlink/events.asp">http://go.microsoft.com/fwlink/events.asp</a>. Data: 0000: c0000022" The only thing in smb.log is: [2007/06/12 11:41:09, 0] lib/util_sock.c:get_peer_addr(1000) getpeername failed. Error was Transport endpoint is not connected The only thing in the machine's samba log is: [2007/06/12 11:41:09, 0] lib/util_sock.c:get_peer_addr(1000) getpeername failed. Error was Transport endpoint is not connected [2007/06/12 11:41:09, 0] lib/util_sock.c:write_socket_data(430) write_socket_data: write failure. Error = Connection reset by peer [2007/06/12 11:41:09, 0] lib/util_sock.c:write_socket(455) write_socket: Error writing 4 bytes to socket 24: ERRNO = Connection reset by peer [2007/06/12 11:41:09, 0] lib/util_sock.c:send_smb(647) Error writing 4 bytes to client. -1. (Connection reset by peer) There is nothing in the Fedora log near to when the workstation boots or the user tries to login. I can connect to a share on the server from the Windows computer, when logged in as a local user, using "net view" or entering the path directly (\\rhel-clean2\sharename\). I can ping the server from the workstation and vis-a-versa. I've explicitly added the workstation to the forward and reverse DNS zone files. The time of the server and workstation is less than 5 min apart. I have explicitly added the linux server as a WINS server on the Windows box (just in case). When I lookup the Windows system error on Google at I get stuff about the machine's password being out of sync or various things about group policies for encryption and such. I tried turning off all of the related group policies with no effect. I am pulling my hair out trying to figure this out. Any and all help is appreciated. Thanks, -Mont