Remote Wake on Lan

darkmarauder wrote:
OK, I have already set up Port forwarding, which I would have expected to be working as I am able to use WOL from within my LAN.

That simply does not follow. Everything is open on the local LAN, by default all unsolicited inbound internet traffic is blocked by the router firewall . Port forwarding changes that behavior for the specified port. In general it can create some security vulnerabilities, and many routers therefore limit what they will forward to protect the users from themselves. ISPs will also often block some ports for similar reasons.

darkmarauder wrote:
One question though, is how do I test access to the Readynas from outside my LAN? I would have expected something like http://INTERNETIPADDRESS/readynas etc etc

More port forwarding (setting up a second HTTPS port number on the NAS, and forwarding that port in the router to the NAS). Then you would use https://INTERNETIPADDRESS:PORT/admin

After the test look into dynamic DDNS, which would give you a name that you can use instead of the IP address. Your ISP will change your IP address w/o notice, so it is best to use a name that is always linked to whatever your current IP address assignment happens to be.