Forget it...I just bought a new router. A Linksys WRT54GS. I didn't want to bother with the whole thing anymore. I knew I should've just stuck with a Linksys. Thanks for the help though. Now my macbook is able to log on fine.
I'm having the same problem with this and i think i changed all the ports. Can somebody post up a screen print of their router settings for me. I can't seem to get it to work. I keep getting knocked off immediately after i log on.