Let me try to answer everyone's questions. Here we go:
<The AE has only one RJ45 plug, right? So you connect your computer to
this one RJ45 plug in the AE with a cable when you want to configure
the AE.>
Correct there is only one plug. This is an airport Model number A1084.
I did a search for it online and I found it here:
http://auctions.overstock.com/item/38771450
When I have everything in the way I think it should be and I open up
my browser I get the exact same affect as if I wasn't hooked up to the
internet at all. However my airport light is green so I know that's
working. And When I turn the airport on, my network shows up and it
appears that I have full signal.
<Did any of this work at some point in the past, or is this a new
installation?>
Actually now that you mention it. I use to have DSL with earthlink.
When I had that, my wireless worked perfectly. It wasn't until I
switched to cable modem that things went crazy. This was before I even
set up Vonage. So it's always been my cable connection that messed
things up. I did reconfigure my airport for cable modem, would that
green active light on my airport along with the fact that my computer
shows my Network when I turn the airport show that it was configured
correctly for my new cable connection?
<I am going to presume that this worked fine with the Airport plugged
directly into the cable modem, and it quit when you added Vonage.>
As I mentioned it never worked the second I opted for a cable
connection. But I was waiting until my Vonage got hooked before
playing around with it. I recently tried to connect from my cable
modem directly to my airport just to make sure and that didn't help.
I did take my airport to the mac store and they confirm that
everything is running correctly on that and it must be one of the
other two items. However whenever I call one of the Customer Service
departments they blame the other company and tell me they can't help
me.
Thanks everyone - I hope you are up for the challenge!