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Vserver lost connection to Domain Controllers

Last Updated:

Applies to

  • ONTAP 9
  • CIFS
  • Microsoft Active Directory domain controller (AD DC)


  • Vserver lost connection to Domain Controllers
  • EMS.log shows a failure:

secd: secd.unexpectedFailure:debug]: vserver (Vserver_01) Unexpected failure. 
Error: Lookup of CIFS account name procedure failed   [  1 ms] 
No servers available for MS_LSA, vserver: 13, domain:   [     2] 
No servers available for MS_LSA, vserver: 13, domain: **[     3] 
FAILURE: Unable to make a connection (LSA:DOMAIN.COM), result: 6940   [     3] 
Could not find Windows name 'domain\username'   [     3] CIFS name lookup failed 

  • SecD.log shows a failure:

RESULT_ERROR_SECD_NO_SERVER_AVAILABLE:6940 in getBestConnection() at src/connection_manager/secd_connection_manager.cpp:898

  • Affected Vserver has discovery mode set to none:
::> set advanced
::*> vserver cifs domain discovered-servers discovery-mode show -vserver *
Vserver         Mode
--------------- ----------
vserver1        all
vserver2        all
vserver3        site
vserver4        site
vserver5        none
5 entries were displayed.
  • No preferred domain controllers set:

::> vserver cifs domain preferred-dc show
Vserver        Domain Name                   Preferred Domain Controllers
-------------- ----------------------------- ----------------------------------
vserver5                    -

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