Port forwarding fail Error 31526 with dlink DIR-615

I cannot remotely access My Book Live, and on my D-Link DIR-615 get:

Port forwarding failed to connect on port 80 and port 443 . (Error 31526)

I have set the virtual server settings thus:

I

Are you sure your ISP isn’t blocking 80/443?

See if this gets you anywhere:

http://community.wd.com/t5/WD-My-Cloud/HOW-TO-Troubleshooting-Remote-Connectivity-Issues/m-p/617261#M1130