If there is an Ethernet connection, that is the one seen by the dreamlink.
With these Dreamlinks, an Ethernet connection will always take precedence over WiFi, even if wifi is enabled but an Ethernet is connected, the connected ethernet will be the one used by the dreamlink.
Message says...
'check your internet connection and portal url'
If you gots internet connection and IPs populate as 4wheelin asks, and you have also done a receiver reboot... then next step is shown in that message.
Check your URL.. Go to service website and log on to your code. Check what URL is given to that code. Ensure it matches what you have shown on the Dreamlink.
That factory reset will have erased your server setup on that dreamlink, so check that and redo.