Can't setup WD My Cloud EX2 ultra first time on MAC OS X El Capitan ver 10.11.4

Hi All
I am setting up the WD My cloud ex2 ultra first time on mac.I can’t access the dashboard.I tried to launch but error came

Is your unit connected into your router, or into an Internet modem? Can you access the Dashboard in a different Internet Browser or computer within the same network? Can the Desktop app detect your unit?

Hi Thanks for your email

What IP address or web address should I type to access the Dashboard ?

With Kind Regards
Mob : +61 404 807 400

That is up to your router. The unit does not have a factory IP address.