I'm trying to put my AM300 into half bridge, but I think I've made a mistake somewhere. My network is as follows:

Linksys AM300 modem connected the WAN port of the D-Link DIR-655 router, which is in turn connected to a HP ProCurve gigabit switch. All the PCs are connected to the switch. It is an exclusively WIRED network.

At the moment I can access the internet from all the PCs, but I don't think the AM300 is actually in half bridge mode...

I haven't touched any settings apart from disabling the router's wireless function, and the following settings for the modem:



Why is the routers status page mostly blank?