Airport connection "lost" after upgrades

My husband updated his computer (iBook G4, running Mac OS 10.3.9) this morning, and has been unable to access any airports since. When I checked into the System Preferences, it showed nothing under the TCP/IP, even with the choice of select "Using DHCP." Clicking on the "Renew DHCP License" did nothing, either. The airport shows in the list on the menu bar, and it has a check in front of it, it's just that the network cannot be found.
I also tried to run the airport admin. utility, which could not find the connection, either. Any help is greatly - and desperately - needed!!!
Thanks,
Carol
iBook G4 Mac OS X (10.3.9)

I had the same thing happen to me yesterday, I have an ibook running 10.39. I have my dsl plugged directly in now but I haven't figured out how to get airport to work again.
If I figure it out, I will post, in the meantime I hope someone with a wonderful solution posts...

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