Okay, I realize this has been covered here mostly on a case by case basis. I suppose as it should when every Modem is not created equal. I have spent hours (days) and I'm at my wits end. I did get it to work once after rebooting my modem. Next morning Airport was down and could not reconnect. I have all the right checkboxes ticked using WPA-TKIP and WPA2-AES as my security. I have the original Airport card. Firmware is 9.5.2 (I'm running Tiger and obtained the firmware update through Software Update...I've played with settings on the modem to no avail. Rebooting both iBook and modem too many times than I care to admit. I've trashed Airport preferences, etc. Are there any tricks I need to know about? I'm running with my security OFF / OPEN at the moment and I really don't want to do that. I really wanna use this Mac on the internet, but if I can't secure my Network I just might give up Maybe I'm missing something obvious? What's worked for you?