What I find strange here is that Roadshow fails here. I tried to get Miami working on a friends A4000 over Mediator PCI network card and it always failed in a similar way. Genesis was useless without DHCP, static IP didn't work. This was with a NetGear router.
I have a NetGear router, older, but interface is similar. It's strange as Roashow was the only stack that worked. Didn't try MamiDX though.
Despite this, my A4000 works fine with Miami over an A2065 network card.
Getting back to it, I notice that LAN status is missing a gateway and DNS server. Shouldn't there be one listed here and could this be tripping Roadshow over?