Well to be more precise, my mac forgets it's connected after about 60 seconds of a boot. Just had wireless installed today; company says they will only involve themselves physically up to the cable modem and don't provide info on the computer end. However, have TCP/IP set up as far as the installer guys knew, and it looks to me like it should work: Ethernet, DHCP, all other boxes blank except for a few IPs in the name server box. And it does work....for 60 seconds. Literally. Then poof. My lil iMac (333 G3 on 9.1) doesn't know it's online anymore, and I can't connect to or do anything. Everything is fine on the hardware end; installer dudes hooked up one of their laptops to the cable modem while we were noticing this problem, and their windows machine stayed connected fine. Also all lights on the cable modem are in proper order . I have been combing the web on my trusty old dialup connection all afternoon now and haven't found an answer to this yet. I did, however, find one post on another site from a guy with the exact same problem (same version of MacOS btw); unfortunately his post didn't get any replies. So...any thoughts on how to stay connected for more than a minute?