
Appendix A Troubleshooting 413
Nortel Business Secure Router 252 Configuration — Basics
Problems with the WAN interface
Problems with Internet access
Table 117 Troubleshooting the WAN Interface
Problem Corrective Action
Cannot get WAN IP
address from the ISP.
For initial setup of the Business Secure Router, see
Nortel Business
Secure Router 252 - Fundamentals
(NN47923-301).
The ISP provides the
WAN IP address after authentication. Authentication can be through the username
and password, the MAC address, or the host name. Use the following corrective
actions to make sure the ISP can authenticate your connection.
You need a username and password if you are using PPPoE or PPPoA
encapsulation. Make sure that you have entered the correct service type,
username, and password (the username and password are case-sensitive). Use
the WAN screens in the WebGUI.
If your ISP requires host name authentication, configure your computer name as
the system name of the Business Secure Router (use the System General screen
to configure the system name).
Table 118 Troubleshooting Internet access
Problem Corrective Action
Cannot access the Internet. Check your cable connections. Refer to the
Nortel Business Secure
Router 252 — Fundamentals
(NN47923-301) guide for connection
information.
Verify your settings in the WAN screens.
Internet connection disconnects. Check the call-scheduling rules.
If you use PPPoA or PPPoE encapsulation, check the idle time-out
setting in the WAN screens.
Contact your ISP.
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