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Unsupported protocol configurations for FlexGroup volumes
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Unsupported_protocol_configurations_for_FlexGroup_volumes
Applies to ONTAP 9 CIFS/SMB FlexGroup Issue Customers using older version of windows attempting to connect to CIFS shares hosted on flexgroup volumes.

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