nut,
you should be able to access the wrtg config (at 192.168.1.1) if you are hard wired to it. Did you ever set it up properly, with a new password, and the wireless settings you desired, including security (WPA)? If not, disconnect it from the BEC, wire into it with your laptop to one of it's LAN ports, not the Internet port, and set it up the way you desire. turning off DHCP, only one router should handle the dhcp and normally that's the first one in line,
If you still can't get into the wrtg, maybe someone else changed the password before you got into it. You might need to do a reset to get it back to default settings.
Fastest instructions on setting up two routers on one network.
http://www.ehow.com/how_4527815_two-routers-one-home-network.htmlAlso I'm confused by this Local Area Connection 5 - Your not getting a good IP address from that connection.
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 115.84.x.x
Subnet Mask . . . . . . . . . . . : 255.255.255.0
That IP address isn't in your range of dhcp clients,