I was wondering if anybody could help/offer suggestions around a sporadic issue I am having with Windows 7 and file transfer speeds, I have tried to provide as much background as possible as well as my configuration settings..
Recently upgraded my netwrok to gigabit by introducting a Netgear 1Gig switch, this is connected to a Linksys router 160N (100m/b).
Main server - Windows 7 Ultimate (64 bit)
HTPC1 (Asrock Ion dual core) - Windows 7 Ultimate (32 bit)
HTPC2 (Asrock Ion dual core) - Windows 7 Ultimate (32 bit)
Server is hard wired to the switch via a cat5e cable as is the HTPC1, HTPC2 is hard wired over dlan.
I expect to receive gigabit file transfer speeds between Server & HTPC1 but my exprience is completely sporadic. Transferring a 4gig file over the LAN runs between 3MB/s and 12MB/s, if I run an extended cat5e to the bedroom and connect it to HTPC2 I get a whopping 65MB/s. both of the HTPC'2 are identical from a hardware/driver perspective so I am really confused as to why the speed is differing.
Things I have tried:
Swapping the cat5e cables around to see if one was faulty,
Changing the ports from HTPC1 to switch,
Complete format and reinstall of Windows,
Turning Jumbo Frames on/off (no difference)
Updating NIC drivers
Router has latest firmware
Turning off differential comression
(After the format/reinstall of Windows I did [as a one-off] achieve a 50MB/s transfer between Server & HTPC1 but now it has just reverted back to an average of 9MB/s)
I have ordered some cat6 cables to see if this makes a difference but I dont think this is the main issue as I have managed to achieve a 65MB/s transfer on my HTPC2 using cat5e.
Any suggestions or reasons why I am experiencing such a variance in speed would be greatly appreciated,