make sure you have forwarded port 9000 to your nas' ipaddress in your router. that should be the default port, however, you may want to double check it in the Web Access setup. otherwise, forward the listed port to in your router to your nas' ipaddress. if this doesn't work, you may try giving your nas a static ip on your network, disable the upnp port forwarding in the nas Web Acccess Setup and assign port 9000 to be used, then port forward 9000 in your router to your nas' new static ipaddress. should work after that.