DSM-G600, DNS-3xx and NSA-220 Hack Forum

WAN speeds?  What is it you're trying to measure?

I see no reason to try to measure WAN (Wide Area Network) speeds using a DNS-323, unless it's the only device on the LAN (Local Area Network), which I'd say is highly unlikely, it would probably be a lot easier to use a speed test utility on a PC.

It helps if you keep related things in a single thread - you certainly don't mention testing anything with a PC in this thread prior to where you mention it in your second post - it also helps if your questions are clear - in the title of the thread you ask about testing WAN speed, which would be network throughput, whilst in the first post, you ask about testing the speed of the DNS-323, which is definitely something different.

Ixia offers a free network throughput testing tool called QCheck - QCheck itself won't run on the DNS-323, but, the way it works is that QCheck controls testing between selected endpoints and endpoint software is available to run on the DNS-323 as well as many other host OSs, so if you have "end-to-end" control of the WAN link across which you are downloading (or at least control over a host at the far end) you could use QCheck to measure the throughput across the WAN.

One word of caution - do not be surprised if QCheck indicates that your network throughput (LAN or WAN) is significantly higher than you expect it to be, based on what you see elsewhere - QCheck will only measure network throughput, and unless you're fortunate enough to have a gigabit WAN connection, that is unlikely to be your bottleneck.