CIFS share access fails after changing SVM LIFs to new VLAN
Applies to
- ONTAP 9
- CIFS
Issue
- After adding SVM LIFs on a new VLAN and removing the SVM LIFs on the previous VLAN, CIFS clients are unable to access CIFS shares
- The following errors are seen in EMS:
2/23/2024 08:22:29 node-01 ERROR secd.cifsAuth.problem: vserver (SVM1) General CIFS authentication problem. Error: User authentication procedure failed
CIFS SMB2 Share mapping - Client Ip = 1.2.3.4
[ 0 ms] Login attempt by domain user 'DOMAIN\user1' using NTLMv2 style security
[ 3] TCP connection to ip 5.6.7.8, port 389 failed: Network is unreachable.
[ 3] LDAP search for the "dnsHostName" attribute(s) within base "" (scope: 0) using filter "(objectClass=*)" failed with error: Can't contact LDAP server
[ 3] TCP connection to ip 5.6.7.9, port 389 failed: Network is unreachable.
[ 3] LDAP search for the "dnsHostName" attribute(s) within base "" (scope: 0) using filter "(objectClass=*)" failed with error: Can't contact LDAP server
[ 6] Failed to connect to 5.6.7.10 for DNS: Network is unreachable
[ 6] Failed to connect to 5.6.7.8.11 for DNS: Network is unreachable
**[ 6] FAILURE: Unable to contact DNS to discover domain controllers.
[ 6] Unable to make a connection (NetLogon:DOMAIN.COM), result: 6812
[ 7] CIFS authentication failed