D-Link DNS-320L User Manual page 363

Section 4 - Configuration
You can download the app from below link:
iOS (iTunes App Store)
h t t p s : / / i t u n e s . a p p l e . c o m / u s / a p p / m y d l i n k - a c c e s s - n a s /
id531078699?l=zh&mt=8
Android (Google Play)
https://play.google.com/store/apps/details?id=com.dlink.nas&hl=en
DNS-320L 358
D-Link ShareCenter™ User Manual