Cannot access MyBookLive via External IP

I have opened up all required ports and redirected ext 8443 to 443 & 8080 to 80.

When I try to hit a share via https://externalip:8443/Share I get asked for a username and password but none I try will work.

I have tried this from within browser as well as map from within Windows and also via Filebrowser on iPad.

Does anybody have any ideas why none of the usernames/passwords I use work?

Thanks

should also say, this is the firmware I am running (in case it matters)

MyBookLive 02.43.03-022 : Core F/W

I’m not certain, but I don’t think what you’re trying to do is possible. I think what you’re trying to do is establish a WebDAV connection, which is only supported via the WD 2go website.

Yes, it was WebDAV I was trying to get setup. On other forums people hinted it was possible but maybe I misunderstood.
What is the next most secure way of accessing files? I need to access them outside of WD2Go