Here’s a quick tip on increasing network file transfer speed on Server 2008 and Server 2008 R2 that we use.
Change the following information in your server’s registry and reboot.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Value =DisableTaskOffload
Type = DWORD
Data = 1
Type = DWORD
Data = 1
Value =EnableTCPChimney
Type = DWORD
Data = 0
Type = DWORD
Data = 0
Value =EnableTCPA
Type = DWORD
Data = 0
Type = DWORD
Data = 0
Value =EnableRSS
Type = DWORD
Data = 0
Type = DWORD
Data = 0