Ensure that the traffic is processed by the expected policy.
Go to the Real Time Conversations monitor and check the Show Policies option, which groups the traffic by the virtual circuit and policy. Look for the desired traffic in expected policy. If the traffic is being accelerated by TCP, the background colour is yellow. If the traffic is being processed by CIFS acceleration the CIFS acceleration icon is shown. 
If a client had already established a connection with the server when the SMB acceleration service was restarted, file transfers over that connection cannot take advantage of the acceleration.
There are two options for terminating the connection between the client computer and the server: Restart the client computer or on a MS Windows client computer, navigate to Control Panel > Administrative Tools > Services, and restart the Workstation service.