Hello, I have a linksys WRT54GX v2 wireless-G router. I've always been able to login to it typing 192.168.1.1 in IE on the PC that's connected to it via ethernet cable. Today I got a few messages on my iBook with wifi that basically somebody had connected to the network. (Also, recently one of my neighbors got a wireless network which is visible to me under my airport button, but I don't know who it is). So I finally got off my lazy **** and looked for the MAC addresses for all the computers in the house, so I could enable MAC filtering on the router. I got the numbers, and when I sat down at the PC and tried logging into the router, I got a slightly different looking name/password prompt window. My password didn't work, and I got a "login failed." I tried resetting the router and then logging in afterward, but I got the same different looking name/pw prompt and was unable to login. I also tried 192.168.0.1 and 192.168.1.0, but to no avail. It seems like one of my neighbors has somehow taken over my network, or something. What can I do?