take a look at this topic, maybe you will fin some answers: http://community.wd.com/t5/WD-My-Cloud-EX2/What-to-do-to-increase-transfer-speed/m-p/847195
so I will take a guess here that you EX2 is connected via ethernet cable into your router. From what i saw at a first glance is that it has gigabyte port, but not sure if it’s using it. To your router you are connecting the computer via WIFI.
-
are your wireless board’s drivers updated ?
-
are you using b or n or ac type ?
-
what type of encryption does your router use for wifi and have you tried changing it ?
-
are you using 20ghz or 40ghz and have you tried changing it to see if it helps ?
-
are there other computers on your network and is the speed the same ?
6.what’s the distance between your router and computer and what interferences do you have?
-
are there other wifi channels in your area the same as you are using ?
-
what HDD configuration are you using in the EX2 ?
-
does the speed improve if you plug in the EX2 directly into your computer ( to rule out the writing speed on the nas, or software limitations) ?
so you see, not very easy to pinpoint the problem