XG Home on XG 115w Rev3 Appliance - Can't access WebGUI

Hi,

I've got a used XG 115w rev3 and installed the Sophos XG Home Software Version on it.

The issue I encountered was that after a successful installation of the SW image, I cannot reach the appliance to complete the initial wizard. When patched to port 1 the port seems active, but no traffic seems to pass since I cannot reach the 172.16.16.16:4444 (not even ping), while ports 2-4 don't light up at all. 

I tried to connect from a laptop with IP: 172.16.16.2/24.

I have found this thread with a similar problem. But the solution didn't help me.

Any idea of what perhaps is wrong?

David