Synology NAS SMB speed doubled

My lab set up a Synology NAS device and it is connected using a 1Gbps switch with other computers. I noticed that the read/write speed of the NAS by SMB network drive is only about 47MB/s. After searching on the internet, I learned that I have to turn off the SMB signing to increase the speed. In the group policy of a local computer, I disabled “Using Microsoft network client: Digitally sign communications (always)”. On Synology NAS, the SMB signing was also turned off. After changing the above settings, I finally got a read/write speed of 110MB/s for the NAS by SMB network drive.

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