Linksys Wireless Router :: WRT54G In Access Point Mode Impossible

I have a network with 2 WRT54Gs in it. One in the besement connects to my cable modem and serves as a gateway and DHCP server as well as a wireless access point. That WRT54G is perfectly accessible. I have another in my room set up as a router and access point only, connected by its ethernet port to the gateway. This one proves a bit trickier. Thet network works flawlessly, and if I couldn't see it sitting right there I would doubt it even existed. I can't ping it (I forgot the IP but tried all the ones that seemed logical), it doesn't show up in my network map, etc. From what I gather that's how a switch is supposed to work. But since this is also a managed router, I would think there should still be some way to connect to it to administer it. How can I log in to this router to change settings if I need to?

I'm not sure if maybe 192.168.2.0 is the other router or if that's some kind of special address (My network is on the 192.168.2.* subnet, don't even ask why...). I've seen it in other posts about routing tables but they all had it routing to 0.0.0.0 instead of the router's own IP. I tried pinging 192.168.2.255 and got no responses at all, not from any computers or from either of the routers, so that was not useful. Tracert from my computer to the gateway doesn't show the router (my computer connects to the gateway through the router).