Macbook Pro won't connect to Airport Express, period.
1) No matter what, whenever I try to connect to the Airport Express' wireless network, I get a connection timeout or some other error. This happens whether I attempt connecting via the Airport Utility, or manually using the airport icon in the toolbar.
2) As a result of #1, it's completely impossible to configure my airport express wirelessly, because when the Airport Utility tries to connect it just ends up giving me an error.
3) As such, I have tried configuring the airport express by hooking it up to my computer via ethernet cable. Once I do that, I am able to configure to my heart's delight, but then when I plug the Airport back into my cable modem, I am once again no longer able to connect wirelessly because of connection timeouts.
4) My connection timeout issues happen whether the Airport's light is solid amber, flashing amber, or solid green. They would probably still happen if the light was fuchsia or cerulean. As far as I can tell, the status light makes no difference whatsoever.
5) I have the most up-to-date firmware on my airport express.
6) I have the most up-to-date version of the Airport Utility.
7) I have run an ethernet cable directly to my laptop from my cable modem and the internet works fine, so the problem is not coming from my ISP.
8) My laptop (15" Macbook Pro running OSX 10.5.8) is able to connect and maintain connections to other wireless networks without any problems.
I'm at a loss. All I want is wireless internet. It can't be that hard, right?
Help!
Thanks in advance.
MacBook Pro 15", Mac OS X (10.5.8)