I have been having some Apple woes recently and am wondering if you guys can help. Lately, my wifi on my iMac (intel Core Duo running 10.4.8) has been a bit flaky. I've had to turn it on and off to get it to pick an IP address from my router. A bit tedious but thats ok. Sometimes I even had to do it a coupole of times. However, last night I found that my Mac would just not pick up an IP address from my router no matter what I did. I have tried restarts, resetting the PRAM and turning the wifi card on and off numerous amounts of times. I have even tried resetting my router and starting from scratch. My brothers Windows laptops connected fine to the router before and after the router was reset. It is a Linksys router. Now here is where it gets pretty spooky. When I boot up in Windows on my iMac via Boot Camp (so windows is running natively not virtually) the wifi card works fine. Its picks up an IP address and works flawlessly every time! This means that its probably down to an OS issue. Does anyone have any ideas? My internet connection is hared via the router to all PC's macs in the house. The Mac is telling me that Airport is connected but is not getting an IP address. I have changed the SSID name 3 times to see if that had anything to do with it but none of the different names worked. I did a hard reset on the router which gave it factory default settings - completely open WiFi with no security. This didn't work either. At every stage I tried connecting via Windows in Boot Camp on the Mac and also via IBM Thinkpads and it worked flawlessly each time. I would appreciate any help no matter how small.