Airport Extreme Setup Issues

Airport Extreme Setup Issues

I have the original saucer shaped Airport Extreme. During spring I gave my router to a friend of mine as I was out on a vacation. He used it to run wireless to connect to windows as well as macs.
When he gave it back to me, I reconfigured it using Airport Setup Assistant as well as Airport Admin Utility, but it seems that it is not taking up the IP address from the modem.
I have tried again and again to restart it and configure it, but nothing seems to work. Although, I can connect to it, but I don't seem to be connected to the internet. Hence, I am restricted to connecting via ethernet.
Please help.
I visited the following website to configure the base station:
Original Airport Extreme Setup

Try resetting the modem. Sounds like it's not supplying the AE with an IP address.

I gave my router to a friend of mine

Click to expand...

used it to run wireless to connect to

Click to expand...

So did u give him both the Airport Extreme and the Modem or just the Airport Extreme.
What OS are u using on your Mac?
Is the modem set to DHCP and the AE in bridge mode.

Did you reset it up the same way after you got the extreme back as you did before you lent it to your friend? And I think this is more a modem then AEBS issue. Just make sure all the settings on your modem are put in correct again.