CIFS access using the format ".\user" fails with 0xC0000466
Applies to
Issue
- Unable to access CIFS share folders while using the format "
.\user
". - The Windows clients also do not prompt "
Windows Security
" table for re-entering user and password. - ONTAP responds
0xC0000466
error to the client Session Setup Request as below.
14424 2021-12-03 22:12:42.608893 0.000037 192.168.XXX.XXX 10.129.XXX.XXX SMB2 612 Session Setup Request, NTLMSSP_AUTH, User: .\user
14482 2021-12-03 22:12:42.614822 0.000010 10.129.XXX.XXX 192.168.XXX.XXX SMB2 77 Session Setup Response, Error: Unknown (0xC0000466)
- EMS Log:
8/20/2024 15:28:09 node1-02 ERROR secd.cifsAuth.problem: vserver (SVM) General CIFS authentication problem. Error: User authentication procedure failed
CIFS SMB2 Share mapping - Client Ip = 1.1.1.102
[ 0 ms] Login attempt by domain user '.\user' using NTLMv2 style security
[ 0] Using a cached connection to ad-kso11.cbtc.tw
[ 0] Authentication failed with DC AD-KSO11. Not retriable. (Status: 0xc0000064)
[ 0] Login attempt by local user '.\user' using NTLMv2 style security
[ 0] User is not known
[ 1] Using a cached connection to ad-kso12.cbtc.tw
[ 2] Unable to find the NetBIOS domain name for Active Directory '.'
**[ 2] FAILURE: CIFS authentication failed
[ 2] Using a cached connection to ad-kso12.cbtc.tw
[ 3] Unable to find the NetBIOS domain name for Active Directory '.'