> You should be able to ping the gateway no matter what because it is on the
> same subnet. Sounds like a hardware problem or maybe a cable problem.
No, he could ping the AP from the m0n0wall, cabling is ok. AP to
anything else is unknown at this point.
> I couldn't connect to the web config interface of the AP either.
> The only settings I remember changing on the AP were the transmission rates,
> power and a few other settings related to the wireless side of things...
What is the gateway on the AP set to? You'll have to put something on
the same subnet as it to get to the web config.