File leasing has been disabled for the SMB2 and SMB3 protocols. This reduces functionality and can decrease performance. ...

File leasing has been disabled for the SMB2 and SMB3 protocols.  This reduces functionality and can decrease performance.

Registry Key: HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters
Registry Value: DisableLeasing
Default Value: 0 (or not present)
Current Value: non-zero

Guidance:

You should expect this event when disabling SMB 3 Leasing. Microsoft does not recommend disabling SMB Leasing. Once disabled, traffic from client to server may increase since metadata and data may no longer be retrieved from a local cache.