This allows SMB to use the high … However, if your file server hardware doesn't support RDMA then none of this matters as SMB Direct won't work ever. How to detect status, enable, and disable SMB protocols on the SMB Server For Windows 8 and Windows Server 2012. – Harry Johnston Apr 26 '19 at 22:25 Mark, are you saying that if no RDMA-capable NIC is detected, the configuration options for SMB Direct will not be shown? Currently, Windows 10 supports SMBv1, SMBv2, and SMBv3 as well… Windows 8 and Windows Server 2012 introduce the new Set-SMBServerConfiguration Windows PowerShell cmdlet. NetBT_Tcpip is bound to each adapter individually; an instance of NetBT_Tcpip is shown for each network adapter that it is bound to. NetbiosSmb is a global device, and is not bound on a per-adapter basis. Windows 10 ships with support of these protocols but they are disabled in the OOBE. Without SMB Multichannel, SMB uses regular TCP/IP with the RDMA-capable network adapters (all network adapters provide a TCP/IP stack along with the new RDMA stack).With SMB Multichannel, SMB detects whether a network adapter has the RDMA capability, and then creates multiple RDMA connections for that single session (two per interface). SMB Multichannel is the feature responsible for detecting the RDMA capabilities of network adapters to enable SMB Direct. Windows 8.1 and Windows 10: Add or Remove Programs method. You may want to consider changing all clients from SMB version 1 to version 2 as there are significant performance enhancements in v2 over v1, as well as major security enhancements. Solution: Turned on SMB Direct from the Windows Features and edit the registry key called EnableLinkedConnections. According to the documentation, the only feature that needs to be installed on the server in order to use SMB Direct is the SMB Multichannel feature. Select the check box next to the SMB Direct feature to turn it on. Click the Start button, click Control Panel, click Programs, and then click Turn Windows features on or off. This means that direct-hosted SMB's cannot be disabled in Windows without disabling File and Printer Sharing for Microsoft Networks completely.