On the ONTAP 8.2 we have enabled SMB 2 and SMB 3 and set signing required to false. On Windows 10 we set the registry to:
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\AllowInsecureGuestAuth = 1
When we use SMB 1 and disable SMB 2 and SMB 3 to connect to the CIFS shares we are fine. When we remove SMB 1 and enable SMB 2 and SMB 3, we get sporadic drive mappings from CIFS.
I am in the process of verifying my WAN accelerators to ensure SMB is set for 2 and 3 althogh I doubt this is the error since some share mount.
We are having a hard time understanding why we can connect with SMB 1 and see all the shares from a VSERVER but using SMB 2 and SMB 3 we only see certain shares.