Linksys (BEFW11S4 v.1.4.5) issues IPs to all computers mac or PC, even the one in question. Connection is flawless on PCs, and "regular" airport card users. but not extreme.
Router firmware is up to date. 75% signal strength. Im within 30 feet. Running OS 10.3.3. iMac 1Ghz. New airport extreme card works fine with other wireless routers but not with this one. Its losing 60-100% of packets (Using console to ping yahoo.com).
Thank you for your time and any suggestions.