secd.lsa.noServers due to dns failures

•  Users unable to access CIFS/SMB shares
• EMS:

 secd.lsa.noServers

[NODE-02: secd: secd.dns.server.timed.out:error]: DNS server 192.X.X.X did not respond to vserver = SVM1 within timeout interval. 
[NODE-02: secd: secd.netlogon.noServers:EMERGENCY]: None of the Netlogon servers configured for Vserver (SVM1) are currently accessible via the network. 
[NODE-02: secd: secd.dns.srv.lookup.failed:error]: DNS server failed to look up service (_ldap._tcp.dc._msdcs.domain.com) for vserver (SVM1) with error (Operation timed out). 
[NODE-02: secd: secd.cifsAuth.problem:error]: vserver (SVM1) General CIFS authentication problem. 
Error: Get DC connection latency times procedure failed 
[ 38 ms] Successfully connected to ip 192.X.X.X, port 389 using TCP 
[ 2047] LDAP search for the "dnsHostName" attribute(s) within base "" (scope: 0) using filter "(objectClass=*)" failed with error: Timed out 
[ 7054] Failed to connect to 1192.X.X.X for DNS via Source Address 192.X.X.X: Operation timed out 
**[ 7059] FAILURE: Unable to contact DNS to discover domain controllers. 
[ 7059] Unable to make a connection (NetLogon:DOMAIN.COM), Result: RESULT_ERROR_DNS_CANT_REACH_SERVER
[ 7061] Retry requested, but the retry window (7000 ms) has expired; giving up. 
 

• Packet trace collected on storage while issue is reported shows there is no response from the DNS server when ONTAP is sending the query. 
• ONTAP CLI command dns check indicates DNS is not reachable (this may differ per node):

NODE::> dns check -vserver SVM1 
Name Server Vserver Name Server Status Status Details 
------------- --------------- ------------ -------------------------- 
SVM1_CIFS 192.X.X.X down Operation timed out.

• DC is reachable

NODE-01::> cifs check -vserver SVM1 
Vserver : SVM1
Cifs NetBIOS Name : DOMAIN
Cifs Status : Running 
Site : SITE-NAME 
Node Name DC Server Name DC Server IP Status Status Details 
--------------- -------------- --------------- ------ -------------- 
NODE-01 domain.com 192.X.X.X up Response time (msec): 118 

Note: expected output for a reachable DNS

NODE-02::> cifs check -vserver SVM1 
Vserver : SVM1 
Cifs NetBIOS Name : DOMAIN 
Cifs Status : Running 
Site : 
Node Name DC Server Name DC Server IP Status Status Details 
--------------- -------------- --------------- ------ -------------- 
NODE-02 domain.COM - down Unable to contact DNS 

Note: no entry for Site and error