Oh, sorry, that was a bit of a brainfart on my part

Of course the WAN port goes to the modem
To correct myself, the uplink port has two wires crossed so that it can properly connect to another hub (the alternative being a normal port on your router and the uplink from the other hub, if it has one). No idea why that's the only one your laptop works with. I think some ethernet adapters have the ability to sense uplink and automatically uncross the lines on their side, but then it should also be smart enough to use a proper port
Time for someone more knowledgeable to step in
