User Manual

Troubleshooting 30
If you cannot connect after several minutes, you may be using an incorrect service name, user
name, or password. There also may be a provisioning problem with your ISP.
Troubleshooting Internet Browsing
If your wireless modem router can obtain an IP address but your computer is unable to load any
Web pages from the Internet:
• Your computer may not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www addresses)
to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS
servers for your use. If you entered a DNS address during the wireless modem router’s
configuration, reboot your computer and verify the DNS address as described in “Preparing
Your Network” on page 36. Alternatively, you can configure your computer manually with
DNS addresses, as explained in your operating system documentation.
• Your computer may not have the wireless ADSL modem router configured as its TCP/IP
default gateway.
If your computer obtains its information from the wireless modem router by DHCP, reboot the
computer and verify the wireless modem router address as described in “Preparing Your
Network” on page 36.
Troubleshooting a TCP/IP Network Using the Ping
Utility
Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet
to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP
network is made easy by using the ping utility in your computer.
Testing the LAN Path to Your Router
You can ping the router from your computer to verify that the LAN path to your router is set up
correctly.
To ping the router from a PC running Windows 95 or later:
Unless you connect manually, the wireless modem router will not authenticate using
PPPoE or PPPoA until data is transmitted to the network.