Worldnet customers have a network user name and password because of the firewall, which looks like this:
user name: 123456789@worldnet.att.net
pw: abcdef-ghijklm
Most importantly, you’ll need to enter DNS addresses manually. These seem to work best:
204.127.129.1
204.127.160.1
If anyone needs further assistance, they can email me (Chris) at christiane1@att.net.
If you’re using AT&T Canada as your ISP, add the following line to /boot/beos/etc/servers.ppp:

AT&T_Canada  e ogin:s du
 assword: dw
S

Use these DNS server addresses:
Primary: 206.191.82.225
Secoundary: 206.191.83.225