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CIFS Shares Inaccessible After SVM Migration Due to Kerberos Authentication Failure

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • CIFS

Issue

After migrating a Storage Virtual Machine (SVM) and joining its CIFS server to the Active Directory domain, end users were unable to connect to CIFS shares. The following errors were observed:

  • Windows error messages:
    • System error 59 has occurred. An unexpected network error occurred.
    • System error 1311 has occurred. We can't sign you in with this credential because your domain isn't available.
    • net view showing error 53
  • ONTAP logs:

secd.cifsAuth.problem: vserver(SVM1) General CIFS authentication problem. Error: User authentication procedure failed (Retries:2)...Pass-through authentication failed. (NTStatus:NT_STATUS_NO_LOGON_SERVERS(0xc000005e))...[secd.kerberos.tktnyv:error]: Kerberos client ticket not yet valid for vserver(SVM1)....etKrbInitCreds: Kerberos Error: (Unknown user (KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN))

  • Packet traces showed both Kerberos and NTLM authentication attempts failing.

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