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Unable to access CIFS shares following DNS server IP change

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • CIFS/SMB

Issue

CIFS access is failing with following EMS errors after the DNS server IP changed in the environment.
 
2/26/2024 12:45:46  cluster-02 ERROR         secd.cifsAuth.problem: vserver (vs1) General CIFS authentication problem. Error: User authentication procedure failed
CIFS SMB2 Share mapping - Client Ip = 10.9.7.57
  [  0 ms] Login attempt by domain user 'example\007' using NTLMv2 style security
  [  2008] Failed to connect to 10.0.0.3 for DNS via Source Address 10.9.1.3: Operation timed out
**[  2008] FAILURE: Unable to contact DNS to discover domain controllers.
  [  2009] Unable to make a connection (NetLogon:example.COM), result: 6812
  [  2009] CIFS authentication failed

 

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