How do I configure Airport Extreme to access WD MyCloud on my iPad from outside my home?

My Cloud OS 3 Personal & Network Attached Storage My Cloud
6

Hi briansgreen, see if the following guide helps. 

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

If the problem continues, try to contact tech support directly and they should be able to fix any problems. 

http://support.wd.com/contact/index.asp?lang=en