Sony PS 2 SCPH-77001CB - Manual (Page 54)

54 Troubleshooting
, The network may be busy. Wait a few minutes, and then try to access the network
again.
, Your ISP network may be down. Contact your Internet service provider to
inquire about possible service outages.
, You are using a NAT (network address translation) device or a router, hub or
switch that is not compatible with the PlayStation ® 2 console. Remove the
device, connect your console directly to your cable/DSL modem and update your
network settings for direct connection.
, You are using an Internet service provider that is not compatible with the
PlayStation ® 2 console. For details, refer to the instructions for the software in
use or contact your Internet service provider.