Issue with port forwarding 80/443 wd2go (error 31526)

Yes I am having the same problem using a Billion router this is what I have set up. I also tried HTTPS TCP get same problem

  HTTP TCP 8080 192.168.1.6 80 Always On  
  HTTPS TCP/UDP 8443 192.168.1.6 443 Always On  

 This appears in Settings/remote access/configure

connection status

Connected (Relay connection established)

Port forwarding failed to connect on port 8080 and port 8443 . (Error 31526)

Connection Options:

Application Description External Port  Internal Port  Protocol  IP Address (My Book Live)
WD 2go Port 1:* 80 TCP                             192.168.1.6                             
WD 2go Port 2:* 443 TCP                             192.168.1.6                             

Anybody got any ideas?