Try disabling using -force.
::> vserver nfs kerberos interface modify -vserver nyn001f1 -lif nyn001f1_data2 -kerberos disabled -force
Then run "enable" with the new keytab/SPN.
Try disabling using -force.
::> vserver nfs kerberos interface modify -vserver nyn001f1 -lif nyn001f1_data2 -kerberos disabled -force
Then run "enable" with the new keytab/SPN.