RE: macs just work, yeah, yeah, yeah
Got the mac network problem solved. Apparently Macs don’t just pick up the DNS server automatically from the gateway, or there was a setting in the airport express that wasn’t allowing it. Forced the OpenDNS servers in the tcp/ip config section and it took off. Took two visits once the modem was replaced, but the owner was happy, since no one had been able to troubleshoot it for months.