Ok, thanks to all you guys, it finally works. I fired up my orange iBook just to be sure, and it worked just as expected on wifi. So I knew it was software-related on the Pismo, and my network wasn't to blame. So I was lazy and took 15 minutes to make a clean install of OS 9.2.2 on the Pismo, and everything is OK.

And just for the sake of it:

If you use the Airport utility in OS 9, and scan for networks, is your listed? I hate to sound like a Tier 1 Tech Phone Drone, but did you type in the password correctly? You should be able to use encryption with it, but stay limited to WEP.

Click to expand...

Thanks Mr Phone Drone! As I wrote above, I could indeed see the wifi network, and connect to it with an indeed correct password. The green dots in the strip bar module even indicated a strong connections. I just didn't got an IP, go figure why. But it doesn't matter anymore!

Now, I still have a tiny problem: TCP/IP works fine on both the Pismo and the iBook, since I can surf the web. But strange enough, I can't see nor connect to local machines via AppleTalk. Any idea?