Hi Shelton,
Error 0xC000005E decodes to STATUS_NO_LOGON_SERVERS.
I would suggest we check few things as stated below :
To check if SVM is connected to DC's.
::> set di -c off ; rows 0
::*>vserver cifs domain discovered-servers show -vserver <svm> -node <node_hosting_data_lif>
To check domain trusts:
::*>vserver cifs domain trust show -vserver <svm>
Check creds for the user :
::*> diag secd authentication show-creds -vserver <svm> -node <node_hosting_data_lif> -win-name <domain\user>
Also a secd log and a packet trace would help to further narrow down the issue.
I would suggest to open a ticket with support and share the logs for further analsysis.