Have a serious problem, and I will try to first give the facts:
Version 8.2.3 7-Mode
We lost communication with both primary filers yesterday. It looks as if there is a authentication problem. I am unable to log on with my elevated account, but I can log on with a local account. If a customer reboots, they will lose connection.
Strange, I can access the DR filers with no issues...
I have rebooted the filers this morning, still unable to access the filers with elevated account via SecureCRT and NetApp OnCommand.
All protocols, CIFS, NFS, iSCSI, and FC/FCoE are enabled.
NOTE: In the CIFS windows, I have clicked on the Options TAB and went to Access Security. The Enable SMB is NOT checked.
I am now receiving a email from the primary filers stating Configuration Error with the following link
Found the resolution. When they upgraded the DCs to SMB2, SMB2 was enable on the filers, but, the line cifs.smb2.client.enable was missing. So, I typed in options cifs.smb2.client.enable on, and within ten minutes, we were up and running.