Need help with Apple Airport Express

Your ISP shouldn't matter. Your Mac should just connect automatically. I have one and it works with OSX, Windows and Linux. The only thing I can think of is that you may need to enable wireless in your OS. I would try that first.

If that doesn’t work, you can go to computeraudiophile.com. Someone there will definitely be able to help you. Don't let the name fool you, though. The people there are excellent with technical issues like you have but the audiophile portion is missing. If they try to give you any advice on sound quality, run.

You need to contact the Apple Tech Support line and have them assist you with installation. I had similar problems and they were resolved after thirty minutes on the phone with Apple. They're very knowledgeable and will take you step-by-step through the process.

Had the same problem w/mine (amber light would not change to green) and had to reset it to factory setting via the small button (must be done w/a paper clip or ball point pen) and go thru the set up menu again on my Mac. If this doesn't work, call Mac tech support.

You need to set it up to join your existing network and then enter the name and security code for your network. This should do the trick.