Connecting Reach RTK to Laptop using a Ethernet RJ45 Connector

I have a slightly similar need: my kit connects via 5GHz and a better antenna than the Reach has. I’ve tried to connect the the Reach to the Raspberry Pi by Ethernet over USB, as described by the docs, but never managed to get anything in or out of the Reach. Probably my proxying of Port 80 didn’t work (I’m no expert) - I wonder if this relates to the above question and if guidance can be given for getting such a setup working? Thanks!