Why, when I copy a file (windows explorer copy, paste), am I getting ~100KB/s transfer rate from a drive mapped using the "net use" command in the command prompt and between 25-50MB/s transfer rate when I map the drive using Windows explorer? What is different about these two methods that would affect transfer speed?
Server of the share: Windows 2012R2, locked down with the CIS benchmark at http://benchmarks.cisecurity.org/downloads/show-single/?file=windows2012R2.110
- Settings were locked down by group policy on the domain controller that the server is a member of.
Server of the share is attached to a domain controller on the same network, let's call it "mydomain.local"
Server connecting to the share: Windows 2008R2, remote location, different domain, let's call it "mydomain.remote"
Removing all of the CIS recommended settings makes the speed fast for both types of network drive mapping.
The connecting and the sharing servers are in two different data centers, connected via the internet
Regardless of which connection (net use / windows explorer) is used, the same credentials are supplied. Let's call this account: mydomain.local\myuser
I believe the speed is slow because of this (http://jrs-s.net/2013/04/15/windows-server-2012-slow-networksmbcifs-problem/ ), but I don't know why it would be different depending on if "net use" was used rather than windows explorer.