Hi there,
the same issue with the Formuler F1 I bought last week and the latest openPLI 6.0 here. Connected via Cat5e-cable to a Fritzbox 7360v1. DHCP or static doesn't make a difference for me, no network. As if the lan-port would be defective/dead, but works ok, with no issues with every other E2-image I tested so far. Maybe something is missing, possibly a driver? Things are quite limited when you're using an E2-Receiver without a working network configuration...
Don't know what caused this issue on my Formuler F1, but it is definitely solved on openpli-6.1-release-formuler1-20180205 now. LAN/Network works fine again.
Thank you for all your time and efforts! You're doing really an outstanding job!