Help!

I'm lost.

I can't configure my WBR-1310 (At least changing the "admin" password) without it disconnecting from my Linux PC.

What the hell?

Is there any way to tell Xubuntu (6.06.1, distro I'm using) to use a specific password+username when connecting to the router? How do I do that? I can't find anything under network-admin, at least without maybe digging damn deep.

And if I take out the atenna, will it stop wireless access? Or do I need to configure it from the inside to do that?

EDIT: Well, I was able to disable wireless, but I can't change any account details without the connection being lost; and there doesn't appear to be a straight-forward method to tell Linux to use that password+username... The desktop guide says to go ask my network admin, but that's me.