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I have checked the 2nd SMB option in P&F for SMB Direct and nothing In particular, it uses NetBIOS ports 137-139, rather than the newer port 445 implementation. Background: Workgroup network (not a domain), Netgear ReadyNAS and about a dozen Windows 7 and Windows 10 desktops.My Windows 10 at the time still did not connect to SMB 4. Dell FluidFS Customer Notification: Unable to access shares after updating to Windows 10 v1903, using SMB 3.Windows 10 Error: Your system requires SMB2 or higher.
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In Catalina, I found out I can only use the username, windows cannot authenticate with the display name.
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