Also looking at the manual for your modem:
6. My DSL service’s PPPoE is always disconnecting.
PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a
period of inactivity, just like a normal phone dial-up connection to the Internet.
• There is a setup option to “keep alive” the connection. This may not always work, so you may need to reestablish
connection periodically.
1. To connect to the Modem, go to the web browser, and enter
http://192.168.1.1 or the IP address of the
Modem.
2. Enter the username and password, if asked. (The default username and password is admin.)
3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 1 minute.
4. Click the Save Settings button. Click the Status tab, and click the Connect button.
5. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you
see the login status display as Connected.
6. Click the Save Settings button to continue.
• If the connection is lost again, follow steps 1- 6 to re-establish connection.
