For whatever reason. the new firmware (1.0.1.0) for the Linksys WRT54G v 5 and v 6 has a problem with it's DHCP server connecting to Macs and computers using OS/2 or eComStation. The computer can't find the router. Workaround is either to set the computer to use a static address, or reload the prior firmware (1.0.0.9.)
Alan