Unable to connect to internet although network status is ok

Dear all,
Since Monday (9 January 2005) I have been unable to access the internet using my usual web browsers (Safari, Internet Explorer and Firefox) and e-mail program (Mail) via Airport. This was despite Airport being active and the network status indicating that I was connected to the internet via Airport (green status). When plugging the iBook directly into my router, the network status naturally changed to being connected to the internet via Built-in Ethernet (I defined this order in the network port configurations). I was able to access the internet normally using my web browsers and e-mail program via Built-in Ethernet until this morning. Although the status of both Airport and Built-in Ethernet is still the same, my web browsers indicate that they can't find the respective servers.
Your help would be very much appreciated.
Best regards,
Semilev
iBook G4 14-inch   Mac OS X (10.3.9)   Airport Extreme Card 640 MB DDR SDRAM

I have exactly the same problem. Internet provider (Time Warner) repaired a cable, installed a new splitter and a new modem. It worked for a day, then same problem. TWC tech verified cable, modem and router OK, problem in the computer. My work around is to disconnect the ethernet from the computer and operate it soley on WiFi. I hope to find out what is wrong with the iMac (running Lion), but for now it works fine this way.
I had even restoree the OS, did not help.
Go to the network preferences and make sure your network is selected, and it should work.
Message was edited by: DocRon78

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