Cant remote access between WD My Cloud & Sir-655 router

hi-need help

ican’t connect from my smartphone WD My Cloud application to my Dir-655 router (without wifi mode)

i assume that maybe the problem is with confing the router 

when trying to connect i get " cannot access network(900)"

any suggestions ? 

Hello,

Take a look at this guide made by another user. Hope it helps.

http://community.wd.com/t5/WD-My-Cloud/HOW-TO-Troubleshooting-Remote-Connectivity-Issues/m-p/617261#U617261