Read much slower than Write on ReadyNAS 516.

My Cable Modem (ISP connection) is also in the garage, along with the ReadyNAS, router, a UPS and other bits and pieces.

Spent the weekend setting up a Vista laptop (old machine) with direct connection to the router that has direct connection to the NAS.
Using the same NASTester software the results were somewhat staggering, although NOT unexpected.

Running NAS Performance Tester Vers 1.7 on default setting (400MB with 5 loops) from my Vista gave this result.
Ave Write in MBps 11.84. (All 5 iterations returned 11.84)
.Ave Read in MBps 11.82 (Very consistent at 11.83, 11.83, 11.78, 11.83 and 11.84)

I imagine the write to the NAS is cached and the constraining item is the cables and connection protocols with Max 100Mbps (around 12MBps).
The absolutely minor difference is in the overheads.
The reads vary a little, and the dip in the 3rd iteration is a minor blip, so not to worry about it.
From this, I read that the ReadyNAS is performing as well as can be expected with the setup I have.

Obviously it would be nice to improve the WiFi from front room to garage, which is the culprit here (I knew this was slow anyway).
Although this does not explain why the read speed is almost half of that obtainable on the writes.
Does WiFi have different speeds in the 2 directions? If not there is still a mystery and the title should be
"Read much slower than Write over WiFi from Win 7 PC to ReadyNAS machine."

Any comments welcome.

P.S. I cannot get the Vista machine working with WiFi on my local network, otherwise I would 'test' using that where the Win 7 PC is situated.