I am using the latest samba package in Debian Squeeze and I have the same problem with error NT code 0x1c010002 but only next a login failure.
1) First I can login without any problem from different clients with different OS. On the client: myuser@mycomputer:~$ smbclient -L sambaserver -U user1 Enter user1's password: Domain=[ORG1] OS=[Unix] Server=[Samba 3.5.6] Sharename Type Comment --------- ---- ------- mynewshare Disk My test share IPC$ IPC IPC Service (Samba 3.5.6) Domain=[ORG1] OS=[Unix] Server=[Samba 3.5.6] Server Comment --------- ------- SAMBASERVER samba 3.5.6 Workgroup Master --------- ------- ORG1 On the server: id user1 is running ok. getent passwd, getent group is running ok. wbinfo -u, wbinfo -g, wbinfo -a user1%passwd is running ok. 2) If I the passwd for user1 is wrong: On the client: myuser@mycomputer:~$ smbclient -L sambaserver -U user1 Enter user1's password: session setup failed: NT code 0x1c010002 On the server: id user1 is running ok. getent passwd, getent group is running ok. wbinfo -u, wbinfo -g is running ok. wbinfo -a user1%passwd: plaintext password authentication failed Could not authenticate user user1%user with plaintext password challenge/response password authentication failed error code was NT code 0x1c010002 (0x1c010002) error messsage was: NT code 0x1c010002 Could not authenticate user user1 with challenge/response 3) If the passwd for user1 is right but next the previous failure: On the client: myuser@mycomputer:~$ smbclient -L sambaserver -U user1 Enter user1's password: session setup failed: NT code 0x1c010002 On the server: id user1 not found user but yes other users from de domain. getent passwd(even user1), getent group is running ok. wbinfo -u, wbinfo -g is running ok. wbinfo -a user1%passwd: plaintext password authentication failed Could not authenticate user user1%user with plaintext password challenge/response password authentication failed error code was NT code 0x1c010002 (0x1c010002) error messsage was: NT code 0x1c010002 Could not authenticate user user1 with challenge/response 4) Commands for going to the first point: rm /var/cache/samba/*tdb /etc/init.d/samba restart /etc/init.d/winbind restart * My samba server is a domain member and the PDC is a Mac OSX server with samba. ** It looks like the problem is something with the cache. With winbind cache time = 1 I have the same results. Package samba info: Version: 2:3.5.6~dfsg-3squeeze5 Dependences: samba-common (= 2:3.5.6~dfsg-3squeeze5), libwbclient0 (= 2:3.5.6~dfsg-3squeeze5), libacl1 (>= 2.2.11-1), libattr1 (>= 2.4.41-1), libc6 (>= 2.6), libcap2 (>= 2.10), libcomerr2 (>= 1.01), libcups2 (>= 1.4.0), libgssapi-krb5-2 (>= 1.8+dfsg), libk5crypto3 (>= 1.6.dfsg.2), libkrb5-3 (>= 1.8+dfsg), libldap-2.4-2 (>= 2.4.7), libpam0g (>= 0.99.7.1), libpopt0 (>= 1.16), libtalloc2 (>= 2.0.0), zlib1g (>= 1:1.1.4), debconf (>=0.5) | debconf-2.0, libpam-runtime (>= 1.0.1-11), libpam-modules, lsb-base (>= 3.2-13), procps, update-inetd, adduser If you need more information tell me. Thanks so much. Regards.
smb.conf
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