Hurrah. The set up is essentially Airport with IPv4 turned off, plus a little pppd work at the command line. Packets get through fine, etc.<BR><BR>The thing which doesn't work is DNS.

Right click on command prompt result and click Run as Administrator from the drop down menu. At Command prompt window, type the command net stop dnscache and press Enter.

Hi,<BR><BR>Need to change the static DNS IP address in 60-some Macs. All the Macs are running 10.3.9. I have ARD 3.x so I could blast a Unix command to each, or replace some key file.<BR><BR>What ...

Select Use the following DNS server addresses and enter either 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) as your preferred DNS server. Press OK and then OK again, and your Internet should work again.