I forgot, computers do not make mistakes. If things do not work start again and go through the steps.
I just did that, somehow somewhere a setting had been changed.
But, just one click and I am back on the Internet, Airport Extreme is working as well as it ever did.
I had my iBook G4 with Airport Extreme working great in my network on D-Link Router set up.
I had to reinstall O/S 10.3.9 (Archive+instal, starting from 10.3.2 to 10.3.9)
there was an Airport download 4.1(or something) which was available to download. I did it .
Now my Airport does not work.I am sure it was working to download but after that I restarted and since it was late I turned the iBook off.
This morning the Airport does not respond! Why?
I did not do anything drastic to it!
My system got corrupted in the first place,while downloading updates! Is there some danger inherent in downloading? No power did not go down or anything else which could have been forseen.