I opened a question a month ago on this issue and still haven't resolved it
My ASUS P8Z68-V PRO, Core i5-2500, 8Gb RAM, Windows 7 64bit system is slow on file transfers
Intel 82579V embedded NIC and SMC 8508T switch are both running at Gigabit speed
I recently purchased a Synology DS1513+ to store all my data
When I transfer a big file, 750MB in size, the transfer speeds average around 25Mb/s
When I view an avi, stored on the synology, using VLC, and transfer a similar sized file to the Synology, at the same time, the viewing is heavily disrupted, even halted.
Is this normal behaviour for an embedded Intel Gigabit interface ?
I installed a Logilink PCIe LAN interface to see if I could obtain better performance; apparently not.
Is the switch the bottleneck then ?
I presume that adding a second LAN interface in parallel won't make a difference on Windows 7 ?
Assuming I obtain a switch that can handle it, would teaming two interfaces together e.g. two same model network boards, provide a marked improvement ?