Server 2012 R2 File Server Stops Responding

Hi,
I am facing one problem with my Windows Server 2012 R2 Ent Edition,
Some times file server stops working, I have checked everything is working fine and also can take the RDP but not able to access the shared drive.
I have restart the below services:
DFS Name Space
File Server Resource Manager
Netlogon
RPC
TCP/IP Net Bios Helper
Network Share Interface Service
Server
But finally we need to restart the server then after that problem is sort-out, 
Thanks
Arora, Jitender

Hi
Can you also check the log files for errors? What does event viewer indicate?
Try updating the drivers as well on the server.
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