I have a filer that I am trying to join to an MS domain. Connectivity has been verified but when I run the CIFS setup wizard, it fails with following error msg: Primary Domain Controller must be active for installation...oddly enough, DC is present and as mentioned earlier, can ping Filer's IP. Any help would be greatly appreciated.
I think the issue you are hitting is documented in this KB article:
options dns.enable is
option dns.enable is
off by default.